Cannot change Visible in OnShow or OnHide - Vcl::Forms::TCustomForm::CMShowingChanged

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Трассировка стека:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Трассировка стека:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)> Error dialog appears at launch of WinSCP
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

I just installed WinSCP on a fresh windows install. This message happens every time I open the program. The program then opens up and works regularly.

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Трассировка стека:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

Occurs when launching program after install on new laptop. Once I log into a site, I cannot navigate to directories. They are grayed out. My other laptop has 5.17.3 and I don't have an issue. I grabbed that version for my new laptop and I'm up and running on the older version.

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

Fresh install, on launch. Happens all the time. After clicking OK it seems to function normally.

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

Error occurs on every start of the application.
After continue the application works but the remote window is disabled (grey). No click event received by the panel.

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Veremkivonat:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>
When starting WinSCP with local directory on my Windows 10 laptop, and remote directory on my Ubuntu server at work (via Cisco AnyConnect Secure Mobility Client VPN).

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>
The errors happen when I open the program

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

スタック トレース:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

Thanks for your reports.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Trace de la pile :
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

Error displayed when starting WinSCP.

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Трассировка стека:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
- installed with .exe file
- got a window with error

<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Trace de la pile :
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84) Vcl::Forms::TCustomForm::CMShowingChanged
(000281C3) TCustomScpExplorerForm::CMShowingChanged
(00028052) TCustomScpExplorerForm::Dispatch
(00279DF5) Vcl::Controls::TWinControl::WndProc
(002342BC) Vcl::Forms::TCustomForm::WndProc
(00E4137C) Vclcommon::C2992_0

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(00237E84)
(000281C3)
(00028052)
(00279DF5)
(002342BC)
(00E4137C)

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

I'm sending you an email with a development version of WinSCP to the address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
Cannot change Visible in OnShow or OnHide

Stack trace:
(0025293B) Vcl::Forms::TCustomForm::CMShowingChanged
(00035533) TCustomScpExplorerForm::CMShowingChanged
(00034F37) TCustomScpExplorerForm::Dispatch
(001D6079) Vcl::Controls::TControl::WndProc
(001DBD17) Vcl::Controls::TWinControl::WndProc
(0024DD70) Vcl::Forms::TCustomForm::WndProc
(00FE78AB) Vclcommon::C3005_0
(00FEA8E0) DoFormWindowProc
(00FE7A64) Vclcommon::C3005_0
(001D5B7A) Vcl::Controls::TControl::Perform
(001DAFC0) Vcl::Controls::TWinControl::UpdateShowing
(001DB0E6) Vcl::Controls::TWinControl::UpdateControlState
(001DAE56) Vcl::Controls::TWinControl::CMRecreateWnd
(00034F85) TCustomScpExplorerForm::Dispatch
(001D6079) Vcl::Controls::TControl::WndProc
(001DBD17) Vcl::Controls::TWinControl::WndProc
(0024DD70) Vcl::Forms::TCustomForm::WndProc
(00FEAB40) DoFormWindowProc
(00FE7A64) Vclcommon::C3005_0
(001D5B7A) Vcl::Controls::TControl::Perform
(001DAE0B) Vcl::Controls::TWinControl::RecreateWnd
(0024F352) Vcl::Forms::TCustomForm::SetPosition
(000DAD29) RestoreForm
(00062E3F) TScpCommanderForm::RestoreFormParams
(0002BD1A) TCustomScpExplorerForm::DoShow
(000642C2) TScpCommanderForm::DoShow
(00252994) Vcl::Forms::TCustomForm::CMShowingChanged
(00035533) TCustomScpExplorerForm::CMShowingChanged
(00034F37) TCustomScpExplorerForm::Dispatch
(001D6079) Vcl::Controls::TControl::WndProc
(001DBD17) Vcl::Controls::TWinControl::WndProc
(0024DD70) Vcl::Forms::TCustomForm::WndProc
(00FE78AB) Vclcommon::C3005_0
(00FEA8E0) DoFormWindowProc
(00FE7A64) Vclcommon::C3005_0
(001D5B7A) Vcl::Controls::TControl::Perform
(001DAFC0) Vcl::Controls::TWinControl::UpdateShowing
(001DB0E6) Vcl::Controls::TWinControl::UpdateControlState
(001DE771) Vcl::Controls::TWinControl::CMVisibleChanged
(00034F85) TCustomScpExplorerForm::Dispatch
(001D6079) Vcl::Controls::TControl::WndProc
(001DBD17) Vcl::Controls::TWinControl::WndProc
(0024DD70) Vcl::Forms::TCustomForm::WndProc
(00FEAB40) DoFormWindowProc
(00FE7A64) Vclcommon::C3005_0
(001D5B7A) Vcl::Controls::TControl::Perform
(001D3CB0) Vcl::Controls::TControl::SetVisible
(0024D4AD) Vcl::Forms::TCustomForm::SetVisible
(00259B8D) Vcl::Forms::TApplication::Run
(0012A258) Execute
(0000315D) wWinMain
(0112F759) C5178_0
(00066C12) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066BDF) ntdll.dll.RtlGetAppContainerNamedObjectPath

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

This bug has been added to the tracker:
https://winscp.net/tracker/1862