Naruszenie ochrony pamęci - TTerminalQueue::Idle

<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 5.13.2

Error message:
Naruszenie ochrony pamęci.

Stack trace:
(008BC642) C5104_0
(008BE6AA) ____ExceptionHandler
(008BB464) __ExceptionHandler
(000624F6) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(006ED94F) TTerminalQueue::Idle
(00099011) TTerminalManager::Idle
(000175BF) TCustomScpExplorerForm::Idle
(0003EDA3) TNonVisualDataModule::DoIdle
(0003ED60) TNonVisualDataModule::SessionIdleTimerTimer
(0038022C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) USER32.dll.DispatchMessageW

(008BCCAD) C5104_0
(008BE287) _ReThrowException
(0009902D) TTerminalManager::Idle
(000175BF) TCustomScpExplorerForm::Idle
(0003EDA3) TNonVisualDataModule::DoIdle
(0003ED60) TNonVisualDataModule::SessionIdleTimerTimer
(0038022C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) 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)>

WinSCP 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(FFFFF005)WinSCP.exe
(00F8A13A) C5296_0
(00F8C1A2) ____ExceptionHandler
(00F88F5C) __ExceptionHandler
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(00CBEDD7) TTerminalQueue::Idle
(000AF84E) TTerminalManager::Idle
(00018C91) TCustomScpExplorerForm::Idle
(00049B2B) TNonVisualDataModule::DoIdle
(00049AE8) TNonVisualDataModule::SessionIdleTimerTimer
(003A5978) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) USER32.dll.DispatchMessageW

(00F8A7A5) C5296_0
(00F8BD7F) _ReThrowException
(000AF86A) TTerminalManager::Idle
(00018C91) TCustomScpExplorerForm::Idle
(00049B2B) TNonVisualDataModule::DoIdle
(00049AE8) TNonVisualDataModule::SessionIdleTimerTimer
(003A5978) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.