Privileged instruction - System::Generics::Collections::TList__1<System::Classes::TThread *>::

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WinSCP 5.19.2

Error message:
Privileged instruction

Stack trace:
(003C39C4) System::Generics::Collections::TList__1<System::Classes::TThread *>::
(0008776F) ntdll.dll
(00073E91) ntdll.dll.KiUserExceptionDispatcher
(003B7F4C) System::Classes::TReader::ReadComponent
(003B81FD) System::Classes::TReader::ReadDataInner
(003B813C) System::Classes::TReader::ReadData
(003C5DE5) System::Classes::TComponent::ReadState
(002396F9) Vcl::Forms::TCustomForm::ReadState
(003B9117) System::Classes::TReader::ReadRootComponent
(003B2FE2) System::Classes::TStream::ReadComponent
(003A8A27) System::Classes::_17089
(003AA37B) System::Classes::_17116
(003AA350) System::Classes::_17116
(003AA409) System::Classes::InitInheritedComponent
(00238EF2) Vcl::Forms::TCustomForm::TCustomForm
(000045BA) Vcl::Forms::TForm::TForm
(00003B0D) TCustomScpExplorerForm::TCustomScpExplorerForm
(0004FB22) TScpCommanderForm::TScpCommanderForm
(00243EA2) Vcl::Forms::TApplication::CreateForm
(00E7A593) _SafeFormCreate
(00002658) wWinMain
(00FBA625) C5162_0
(00066A4C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066A19) ntdll.dll.RtlGetAppContainerNamedObjectPath

(003C39C4) System::Generics::Collections::TList__1<System::Classes::TThread *>::
(0008776F) ntdll.dll
(00073E91) ntdll.dll.KiUserExceptionDispatcher
(003B7F4C) System::Classes::TReader::ReadComponent
(003B81FD) System::Classes::TReader::ReadDataInner
(003B813C) System::Classes::TReader::ReadData
(003C5DE5) System::Classes::TComponent::ReadState
(002396F9) Vcl::Forms::TCustomForm::ReadState
(003B9117) System::Classes::TReader::ReadRootComponent
(003B2FE2) System::Classes::TStream::ReadComponent
(003A8A27) System::Classes::_17089
(003AA37B) System::Classes::_17116
(003AA350) System::Classes::_17116
(003AA409) System::Classes::InitInheritedComponent
(00238EF2) Vcl::Forms::TCustomForm::TCustomForm
(000045BA) Vcl::Forms::TForm::TForm
(00003B0D) TCustomScpExplorerForm::TCustomScpExplorerForm
(0004FB22) TScpCommanderForm::TScpCommanderForm
(00243EA2) Vcl::Forms::TApplication::CreateForm
(00E7A593) _SafeFormCreate
(00002658) wWinMain
(00FBA625) C5162_0
(00066A4C) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066A19) ntdll.dll.RtlGetAppContainerNamedObjectPath

(003C39C4) System::Generics::Collections::TList__1<System::Classes::TThread *>::
(0008776F) ntdll.dll
(00073E91) ntdll.dll.KiUserExceptionDispatcher
(003B7F4C) System::Classes::TReader::ReadComponent
(003B81FD) System::Classes::TReader::ReadDataInner
(003B813C) System::Classes::TReader::ReadData
(003C5DE5) System::Classes::TComponent::ReadState
(002396F9) Vcl::Forms::TCustomForm::ReadState
(003B9117) System::Classes::TReader::ReadRootComponent
(003B2FE2) System::Classes::TStream::ReadComponent
(003A8A27) System::Classes::_17089
(003AA37B) System::Classes::_17116
(003AA350) System::Classes::_17116
(003AA409)%2

The problem happens rarely. I cannot reproduce it.