List index out of bounds (-1) - std::_Tree<std::_Tset_traits<unsigned short, std::less<unsigned short>, std::allocator<unsigned short>, 0> >::_Buynode

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WinSCP 6.5.3

Error message:
List index out of bounds (-1)

Stack trace:
(00B8A6A5) C2477_0
(000B34EF) ntdll.dll
(0007A66A) ntdll.dll.KiUserExceptionDispatcher
(00C9BE2D) std::_Tree<std::_Tset_traits<unsigned short, std::less<unsigned short>, std::allocator<unsigned short>, 0> >::_Buynode
(00C9A768) TConfiguration::GetPermanentActionsLogFileName
(00CF023B) __tpdsc__ std::_Tree_nod<std::_Tmap_traits<System::UnicodeString, unsigned long, std::less<System::UnicodeString>, std::allocator<std::pair<const System::UnicodeString, unsigned long> >, 0> >::_Node *
(000CA2D3) TWinConfiguration::Default
(00BB13CE) _SM4_decrypt
(003A3455) System::Classes::_16965
(003A2960) System::Classes::_16889
(00204B78) Vcl::Menus::_16606
(00038B21) USER32.dll
(00026C48) USER32.dll
(000263B5) USER32.dll.CallWindowProcW
(0053941F) Jclpeimage::TJclPeImportLibItem::CheckImports
(00204B78) Vcl::Menus::_16606
(00038B21) USER32.dll
(00026C48) USER32.dll
(000260D5) USER32.dll
(00025C3B) USER32.dll.DispatchMessageW

(001EACDB) Vcl::Stdctrls::TCustomListBox::ResetContent
(001EACDB) Vcl::Stdctrls::TCustomListBox::ResetContent
(000CA2D3) TWinConfiguration::Default
(00BB13CE) _SM4_decrypt
(003A3455) System::Classes::_16965
(003A2960) System::Classes::_16889
(00204B78) Vcl::Menus::_16606
(00038B21) USER32.dll
(00026C48) USER32.dll
(000263B5) USER32.dll.CallWindowProcW
(0053941F) Jclpeimage::TJclPeImportLibItem::CheckImports
(00204B78) Vcl::Menus::_16606
(00038B21) USER32.dll
(00026C48) USER32.dll
(000260D5) USER32.dll
(00025C3B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.