External exception EEFFACE - TCustomScpExplorerForm::DeleteFiles

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.11.2

Error message:
External exception EEFFACE

Stack trace:
(00014608) KERNELBASE.dll.RaiseException
(0003EF0E) ntdll.dll.ZwWow64CallFunction64
(0003F68A) ntdll.dll.KiUserExceptionDispatcher
(004D0DF0) Jclhookexcept::_16408
(0089D216) C5067_3
(0089E607) _ReThrowException
(00014826) TCustomScpExplorerForm::DeleteFiles
(0000EE7C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F11C) TCustomScpExplorerForm::ExecuteFileOperation
(0000F1A3) TCustomScpExplorerForm::ExecuteFileOperationCommand
(000383F8) TNonVisualDataModule::ExplorerActionsExecute
(003BDDBC) System::Actions::TContainedActionList::ExecuteAction
(001A4EF5) Vcl::Actnlist::TCustomAction::Execute
(0037BC78) System::Classes::_18201
(00007E6F) USER32.DLL.CallNextHookEx
(000080CC) USER32.DLL
(0000966A) USER32.DLL
(000096DB) USER32.DLL.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Delete empty folder on remote host

WinSCP 5.17.2

Error message:
External exception EEFFACE

Stack trace:
(001284F2) KERNELBASE.dll.RaiseException
(00084F0F) ntdll.dll
(000723E1) ntdll.dll.KiUserExceptionDispatcher
(0050EE2C) Jclhookexcept::_16408
(00F85AE6) C5296_3
(00F86ED7) _ReThrowException
(000161F3) TCustomScpExplorerForm::DeleteFiles
(000107CD) TCustomScpExplorerForm::ExecuteDeleteFileOperation
(0001088B) TCustomScpExplorerForm::ExecuteFileOperation
(00010A39) TCustomScpExplorerForm::ExecuteFileOperation
(00010ABF) TCustomScpExplorerForm::ExecuteFileOperationCommand
(000439AF) TNonVisualDataModule::ExplorerActionsExecute
(003E7F9C) System::Actions::TContainedActionList::ExecuteAction

The problem happens rarely. I cannot reproduce it.