Belleğe hatalı erişim - Vcl::Imglist::TCustomImageList::DoDraw

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WinSCP 5.9.3

Error message:
Belleğe hatalı erişim.

Yığın izleme:
(000462D6) WindowsCodecs.dll.DllGetClassObject
(00081D3F) ntdll.dll
(0006F8EA) ntdll.dll.KiUserExceptionDispatcher
(000C7E0A) combase.dll
(000C61D0) combase.dll
(000C5B9D) combase.dll
(000C7204) combase.dll.CoCreateInstance
(0001AA23) thumbcache.dll
(00019AA6) thumbcache.dll
(00013BBC)thumbcache.dll
(0000E94F)thumbcache.dll
(0000EA20)thumbcache.dll
(00011072)thumbcache.dll
(00179ECA) SHELL32.dll
(0017AE1B) SHELL32.dll
(00073099) COMCTL32.DLL
(0009BB2C) COMCTL32.DLL
(0008BEAD) COMCTL32.DLL
(00199CE0) Vcl::Imglist::TCustomImageList::DoDraw
(00199FE4) Vcl::Imglist::TCustomImageList::Draw
(00199F9B) Vcl::Imglist::TCustomImageList::Draw
(00478B5F) Tbxutils::DrawTBXIconShadow
(0046ADEC) Tbxofficexptheme::TTBXOfficeXPTheme::PaintImage
(0045BDFD) Tbx::DrawTBXImage
(004634DB) Tbxextitems::TTBXEditItemViewer::Paint
(004506FB) Tb2item::TTBView::DrawItem

The problem happens rarely. I cannot reproduce it.