Invalid access to memory - _aes_ssh2_decrypt_blk

Transferring several large files. Running on Windows Server 2003, Standard x64 Edition, Service Pack 2.


WinSCP 5.7.1

Error message:
Invalid access to memory.

Stack trace:
(0004F052) .[00330052]
[00BE1962] C4799_0
[00BE39CA] ____ExceptionHandler
[00BE0944] __ExceptionHandler
[7D61EC16] ntdll.dll.RtlRaiseStatus
[7D61EA51] ntdll.dll.KiUserExceptionDispatcher
[009F6207] C2234_0
[009F63B3] _aes_ssh2_decrypt_blk
[009E46FD] C2232_0
[009E6961] C2232_0
[009E6B20] C2232_0
[009E6DE0] C2232_0
[00A0C825] _select_result
[00AA76BF] TSecureShell::HandleNetworkEvents
[00AA7982] TSecureShell::ProcessNetworkEvents
[00AA8069] TSecureShell::Idle
[00B09CF3] TTerminal::Idle
[0047A7D5] TTerminalManager::Idle
[00415B9B] TCustomScpExplorerForm::Idle
[0043891B] TNonVisualDataModule::DoIdle
[004388D8] TNonVisualDataModule::SessionIdleTimerTimer
[00740708] System::Classes::_18201
[7D9472D5] USER32.dll.WindowFromDC
[7D947563] USER32.dll
[7D947788] USER32.dll
[7D9477CB] USER32.dll.DispatchMessageW

[00BE1FCD] C4799_0
[00BE35A7] _ReThrowException
[0047A81A] TTerminalManager::Idle
[00415B9B] TCustomScpExplorerForm::Idle
[0043891B] TNonVisualDataModule::DoIdle
[004388D8] TNonVisualDataModule::SessionIdleTimerTimer
[00740708] System::Classes::_18201
[7D9472D5] USER32.dll.WindowFromDC
[7D947563] USER32.dll
[7D947788] USER32.dll
[7D9477CB] USER32.dll.DispatchMessageW

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.

Please try to upgrade first.