<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 5.15.3

Error message:
Invalid access to memory.

Stack trace:
(00416A76) System::ClassDestroy
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(00451382) Dirview::TDirView::SortItems
(00450311) Dirview::TDirView::Reload2
(00452AB4) Dirview::TDirView::TimerOnTimer
(003A3E00) System::Classes::_18201
(00043449) 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)>

WinSCP 5.15.1

Error message:
无效的内存访问。

Stack trace:
(004160E2) System::ClassDestroy
(0008402F) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(00450A0E) Dirview::TDirView::SortItems
(0044F919) Dirview::TDirView::Reload2
(00452140) Dirview::TDirView::TimerOnTimer
(003A346C) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(000353D6) USER32.dll
(000351AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.