Invalid access to memory - Pngimagelist::TPngImageList::PngToIcon

This happened after post-installation launch, which was initiated by the installation program, not from me using a shortcut or the start menu option.

WinSCP 6.5.6

Error message:
Invalid access to memory.

Stack trace:
(005999CC)
(0008844F) ntdll.dll
(000748B1) ntdll.dll.KiUserExceptionDispatcher
(00599E40)
(005990D9)
(00E106E1)
(00E1045A)
(0000A76F)
(0000AF06)
(00059ECE)
(004B1D16)
(00E0B643)
(000033BB)
(00EF5641) C7146_0
(0006743C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00067409) ntdll.dll.RtlGetAppContainerNamedObjectPath

(005999CC) Pngimagelist::_16447
(00EF78FE)
(00EF9976)
(00EF6720) __ExceptionHandler
(0008844F) ntdll.dll
(000748B1) ntdll.dll.KiUserExceptionDispatcher
(00599E40) Pngimagelist::TPngImageList::PngToIcon
(005990D9) Pngimagelist::TPngImageList::EndUpdate
(00E106E1) TGlyphsModule::UpdatePixelsPerInch
(00E1045A) TGlyphsModule::SetLargerToolbar
(0000A76F) TCustomScpExplorerForm::ConfigurationChanged
(0000AF06) TCustomScpExplorerForm::RestoreParams
(00059ECE) TScpCommanderForm::TScpCommanderForm
(004B1D16) Vcl::Forms::TApplication::CreateForm
(00E0B643) _SafeFormCreate
(000033BB) wWinMain
(00EF5641) C7146_0
(0006743C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00067409) ntdll.dll.RtlGetAppContainerNamedObjectPath

The problem happens rarely. I cannot reproduce it.