Invalid access to memory - TStoredSessionList::ResolveWorkspaceData

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WinSCP 5.13.5

Error message:
Invalid access to memory.

Stack trace:
(0076EE96) TStoredSessionList::ResolveWorkspaceData
(0007DABF) ntdll.dll
(0006B6E1) ntdll.dll.KiUserExceptionDispatcher
(00825120) TLoginDialog::ResetSitesIncrementalSearch
(0081FD12) TLoginDialog::SessionTreeChange
(00257051) Vcl::Controls::TControl::WndProc
(0025BB95) Vcl::Controls::TWinControl::WndProc
(00292B3A) Vcl::Comctrls::TCustomTreeView::WndProc
(0025BCFB) Vcl::Controls::_17076
(0025BB95) Vcl::Controls::TWinControl::WndProc
(0025B1DC) Vcl::Controls::TWinControl::MainWndProc
(00380EE0) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036F85) USER32.dll
(000396D7) USER32.dll
(0006B69B) ntdll.dll.KiUserCallbackDispatcher
(0001AC52) USER32.dll.SendMessageW
(0003947D) COMCTL32.DLL
(000B8398) COMCTL32.DLL
(000B7FC7) COMCTL32.DLL
(000DFAB4) COMCTL32.DLL
(000DF9AE) COMCTL32.DLL
(000DF8C3) COMCTL32.DLL
(000B999B) COMCTL32.DLL
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00016AF8) USER32.dll.CallWindowProcW
(0025BCA6) Vcl::Controls::TWinControl::DefaultHandler
(0025BB95) Vcl::Controls::TWinControl::WndProc
(00292B3A) Vcl::Comctrls::TCustomTreeView::WndProc
(00380EE0) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036F85) USER32.dll
(000396D7) USER32.dll
(0006B69B) ntdll.dll.KiUserCallbackDispatcher
(0001AC52) USER32.dll.SendMessageW
(0028F9F1) Vcl::Comctrls::TTreeNodes::Clear
(0081E901) TLoginDialog::LoadSessions
(00820F54) TLoginDialog::CleanUpActionExecute
(00380EE0) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.