Invalid access to memory - _is_ssh

<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 5.14.4

Error message:
Invalid access to memory.

Stack trace:
(006A57AE) _is_ssh
(00926AFE) C5156_3
(00928B66) ____ExceptionHandler
(00925920) __ExceptionHandler
(0007DABF) ntdll.dll
(0006B6E1) ntdll.dll.KiUserExceptionDispatcher
(00746CF5) _do_select
(006C6757) _sk_newlistener
(006977AA) C2538_0
(006979BE) _ssh_connshare_log
(00698144) _ssh_connshare_log
(006A3261) _sshfwd_x11_is_local
(006A0B13) _sshfwd_x11_is_local
(006A437B) _sshfwd_x11_is_local
(00697596) C2538_0
(00697749) C2538_0
(00697A64) _ssh_connshare_log
(006C6C05) _select_result
(00794776) TSecureShell::HandleNetworkEvents
(00794A3A) TSecureShell::ProcessNetworkEvents
(00794023) TSecureShell::WaitForData
(0078F099) TSecureShell::Init
(0078E9F6) TSecureShell::Open
(00812DE9) TTerminal::Open
(0074B6B4) TTerminalItem::ProcessEvent
(00749A80) TSignalThread::Execute
(000BB07F) Userinterface::C20_0
(00017482) KERNEL32.DLL.BaseThreadInitThunk
(0006202A) ntdll.dll.RtlValidSecurityDescriptor
(00061FF5) ntdll.dll.RtlValidSecurityDescriptor
Authentication log (see session log for details):
Using username "DeckMyDorm".
Access denied.

Authentication failed.

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.

Thanks for your report.
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 5.21

Error message:
Invalid access to memory.

Stack trace:
(00C4B77C) _is_ssh
(00FD0D0E) C5412_0
(00FD2D76) ____ExceptionHandler
(00FCFB30) __ExceptionHandler
(0008784F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(00CEEBA5) GetSecureShell
(00CEEC04) _get_callback_set
(00C3BB0C) C2690_0
(00C3BC50) _agentf_new
(00C3FB49) _ssh2_connection_new
(00C41078) _ssh2_connection_new
(00C3EB5D) _ssh_ppl_free
(00BFE226) C2593_0
(00BFE319) _run_toplevel_callbacks
(00D4412E) TSecureShell::EventSelectLoop
(00D43393) TSecureShell::WaitForData
(00D4078A) TSecureShell::Receive
(00D96A12) TSFTPFileSystem::ReceivePacket
(00D98194) TSFTPFileSystem::ReceiveResponse
(00D98396) TSFTPFileSystem::SendPacketAndReceiveResponse
(00D9E626) TSFTPFileSystem::DoStartup
(00DD4FE5) TTerminal::DoStartup
(00DCBF48) TTerminal::Open
(00CFA133) TTerminalThread::TerminalOpenEvent
(00CF4FA0) TSignalThread::Execute
(000C150B) Userinterface::C20_0
(0001EA27) KERNEL32.DLL.BaseThreadInitThunk
(00066A7C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066A49) ntdll.dll.RtlGetAppContainerNamedObjectPath
Cannot initialize SFTP protocol. Is the host running an SFTP server?

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.

@marta.milovanovic: Thanks for your report.
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 5.21.6

Error message:
Fehler beim Überspringen der Startnachricht. Ihre Befehlszeile (Shell) ist möglicherweise nicht mit dieser Anwendung kompatibel (BASH wird empfohlen).

Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(00C57704) _is_ssh
(00FDF74E) C5412_0
(00FE17B6) ____ExceptionHandler
(00FDE570) __ExceptionHandler
(00087B7F) ntdll.dll
(00074001) ntdll.dll.KiUserExceptionDispatcher
(00CFAE91) GetSecureShell
(00CFAEF0) _get_callback_set
(00C47A94) C2690_0
(00C47BD8) _agentf_new
(00C4BAD1) _ssh2_connection_new
(00C4D000) _ssh2_connection_new
(00C4AAE5) _ssh_ppl_free
(00C0A1AE) C2593_0
(00C0A2A1) _run_toplevel_callbacks
(00D5042E) TSecureShell::EventSelectLoop
(00D4F693) TSecureShell::WaitForData
(00D4CA7E) TSecureShell::Receive
(00D4CCFC) TSecureShell::ReceiveLine
(00D2BAA2) TSCPFileSystem::ReadCommandOutput
(00D2C1D8) TSCPFileSystem::ExecCommand
(00D2C287) TSCPFileSystem::ExecCommand
(00D2C798) TSCPFileSystem::SkipStartupMessage
(00D2C479) TSCPFileSystem::DoStartup
(00DE0BB1) TTerminal::DoStartup
(00DD7B14) TTerminal::Open
(00D06427) TTerminalThread::TerminalOpenEvent
(00D01294) TSignalThread::Execute
(000C2803) Userinterface::C20_0
(0001F0F7) KERNEL32.DLL.BaseThreadInitThunk
(00066BBC) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B89) 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.

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