Error getting name of current remote directory - __odtbl__ TPropertiesDialog::LoadStats

<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 5.15.5

Error message:
Error getting name of current remote directory.

Invalid access to memory.

Stack trace:
(007DC133) C4286_0
(0092827A) __odtbl__ TPropertiesDialog::LoadStats
(0092A2E2) __ectbl__ TRightsExtFrame::~TRightsExtFrame
(0092709C) TPreferencesDialog::
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(00018862) TCustomScpExplorerForm::DoOpenDirectoryDialog
(000482C7) TConsoleRunner::ScriptTerminalQueryUser
(00048284) TConsoleRunner::ScriptTerminalQueryUser
(003A3E44) __tpdsc__ tagBITMAP
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

(007E1D2F) C4799_0
(0092827A) __odtbl__ TPropertiesDialog::LoadStats
(0092A2E2) __ectbl__ TRightsExtFrame::~TRightsExtFrame
(0092709C) TPreferencesDialog::
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(007E2E35) System::AnsiStringBase::ThrowIfOutOfRange
(007EFC57) Customscpexplorer::D5_1
(0081C989) Winconfiguration::D22_1
(00819576) __odtbl__ CreateConfiguration
(000AE35A) Vcl::Sysstyles::TSysPopupStyleHook::DrawItem
(000AE4FD) Vcl::Sysstyles::TSysPopupStyleHook::DrawItem
(00021265) TCustomScpExplorerForm::UpdateRemotePathComboBox
(0002110A) __tpdsc__ std::unique_ptr<System::TObject, std::default_delete<System::TObject> >
(000AEBCB) Vcl::Sysstyles::TSysPopupStyleHook::MNSELECTITEM
(00018862) TCustomScpExplorerForm::DoOpenDirectoryDialog
(000482C7) TConsoleRunner::ScriptTerminalQueryUser
(00048284) TConsoleRunner::ScriptTerminalQueryUser
(003A3E44) __tpdsc__ tagBITMAP
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

(007DC133) C4286_0
(0092827A) __odtbl__ TPropertiesDialog::LoadStats
(0092A2E2) __ectbl__ TRightsExtFrame::~TRightsExtFrame
(0092709C) TPreferencesDialog::
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(007E2E35) System::AnsiStringBase::ThrowIfOutOfRange
(007EFC57) Customscpexplorer::D5_1
(0081C989) Winconfiguration::D22_1
(00819576) __odtbl__ CreateConfiguration
(000AE35A) Vcl::Sysstyles::TSysPopupStyleHook::DrawItem
(000AE4FD) Vcl::Sysstyles::TSysPopupStyleHook::DrawItem
(00021265) TCustomScpExplorerForm::UpdateRemotePathComboBox
(0002110A) __tpdsc__ std::unique_ptr<System::TObject, std::default_delete<System::TObject> >
(000AEBCB) Vcl::Sysstyles::TSysPopupStyleHook::MNSELECTITEM
(00018862) TCustomScpExplorerForm::DoOpenDirectoryDialog
(000482C7) TConsoleRunner::ScriptTerminalQueryUser
(00048284) TConsoleRunner::ScriptTerminalQueryUser
(003A3E44) __tpdsc__ tagBITMAP
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

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)>

Tried to connect to a saved ftp server and got the error below. Didn't do anything else, just connect.

WinSCP 5.15.5

Error message:
Error listing directory '/119.252.189.183_41021/Saves'.

Integer overflow

Stack trace:
(003F4503)
(0092827A)
(0092A2E2)
(0092709C)
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(003D27D8)
(003D2788)
(0075978A)
(00759742)
(00726A98)
(007269BF)
(00728D0C)
(0081D9D2)
(0081CEC9)
(0081A7ED)
(0081C87E)
(008147A2)
(0074FEFB)
(0074AE58)
(000BB67F)
(00015357) KERNEL32.DLL.BaseThreadInitThunk
(00066C12) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066BDF) ntdll.dll.RtlGetAppContainerNamedObjectPath

(003F4503)
(0092827A)
(0092A2E2)
(0092709C)
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(003D27D8)
(003D2788)
(0075978A)
(00759742)
(00726A98)
(007269BF)
(00728D0C)
(0081D9D2)
(0081CEC9)
(0081A7ED)
(0081C87E)
(008147A2)
(0074FEFB)
(0074AE58)
(000BB67F)
(00015357) KERNEL32.DLL.BaseThreadInitThunk
(00066C12) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066BDF) ntdll.dll.RtlGetAppContainerNamedObjectPath

(009288E5)
(00929EBF)
(00728E4E)
(0081D9D2)
(0081CEC9)
(0081A7ED)
(0081C87E)
(008147A2)
(0074FEFB)
(0074AE58)
(000BB67F)
(00015357) KERNEL32.DLL.BaseThreadInitThunk
(00066C12) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066BDF) ntdll.dll.RtlGetAppContainerNamedObjectPath

(009288E5)
(00929EBF)
(0081DA01)
(0081CEC9)
(0081A7ED)
(0081C87E)
(008147A2)
(0074FEFB)
(0074AE58)
(000BB67F)
(00015357) KERNEL32.DLL.BaseThreadInitThunk
(00066C12) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066BDF) ntdll.dll.RtlGetAppContainerNamedObjectPath

The problem happens rarely. I cannot reproduce it.