winSCP error

Stack trace:
[01A11FCD] C4799_0
[01A135A7] _ReThrowException
[0124764B] TCustomScpExplorerForm::DoSynchronize
[012A54FB] TSynchronizeController::SynchronizeChange
[015EFA72] Discmon::TDiscMonitor::Change
[015EEE6E] Discmon::TDiscMonitorThread::InformChange
[764D62F7] USER32.dll
[764D6D35] USER32.dll
[764D6DE3] USER32.dll
[764D6E41] USER32.dll
[774D0107] ntdll.dll.KiUserCallbackDispatcher
[764E074C] USER32.dll
[01410A68] Vcl::Forms::TApplication::ProcessMessage
[019B3405] TSynchronizeDialog::Execute
[019B2AD9] DoSynchronizeDialog
[01247313] TCustomScpExplorerForm::DoSynchronizeDirectories
[0126D79B] TScpCommanderForm::SynchronizeDirectories
[01266D58] TNonVisualDataModule::ExplorerActionsExecute
[015B27D0] System::Actions::TContainedActionList::ExecuteAction
[0139A331] Vcl::Actnlist::TCustomAction::Execute
[01570708] System::Classes::_18201
[764D62F7] USER32.dll
[764D6D35] USER32.dll
[764D77BF] USER32.dll
[764D7885] USER32.dll.DispatchMessageW

[0193E409] TTerminal::TranslateLockedPath
[01A11962] C4799_0
[01A139CA] ____ExceptionHandler
[01A10944] __ExceptionHandler
[7751B60A] ntdll.dll
[774D012E] ntdll.dll.KiUserExceptionDispatcher
[018AE0EF] TRemoteFile::GetFullFileName
[0194E414] TTerminal::DoSynchronizeCollectFile
[0194E279] TTerminal::SynchronizeCollectFile
[01942FF5] TTerminal::ProcessDirectory
[0194D9FA] TTerminal::DoSynchronizeCollectDirectory
[0194C1E6] TTerminal::SynchronizeCollect
[01247B2D] TCustomScpExplorerForm::Synchronize
[01247607] TCustomScpExplorerForm::DoSynchronize
[012A54FB] TSynchronizeController::SynchronizeChange
[015EFA72] Discmon::TDiscMonitor::Change
[015EEE6E] Discmon::TDiscMonitorThread::InformChange
[764D62F7] USER32.dll
[764D6D35] USER32.dll
[764D6DE3] USER32.dll
[764D6E41] USER32.dll
[774D0107] ntdll.dll.KiUserCallbackDispatcher
[764E074C] USER32.dll
[01410A68] Vcl::Forms::TApplication::ProcessMessage
[019B3405] TSynchronizeDialog::Execute
[019B2AD9] DoSynchronizeDialog
[01247313] TCustomScpExplorerForm::DoSynchronizeDirectories
[0126D79B] TScpCommanderForm::SynchronizeDirectories
[01266D58] TNonVisualDataModule::ExplorerActionsExecute
[015B27D0] System::Actions::TContainedActionList::ExecuteAction
[0139A331] Vcl::Actnlist::TCustomAction::Execute
[01570708] System::Classes::_18201
[764D62F7] USER32.dll
[764D6D35] USER32.dll
[764D77BF] USER32.dll
[764D7885] USER32.dll.DispatchMessageW

[0193E409] TTerminal::TranslateLockedPath
[01A11962] C4799_0
[01A139CA] ____ExceptionHandler
[01A10944] __ExceptionHandler
[7751B60A] ntdll.dll
[774D012E] ntdll.dll.KiUserExceptionDispatcher
[018AE0EF] TRemoteFile::GetFullFileName
[0194E414] TTerminal::DoSynchronizeCollectFile
[0194E279] TTerminal::SynchronizeCollectFile
[01942FF5] TTerminal::ProcessDirectory
[0194D9FA] TTerminal::DoSynchronizeCollectDirectory
[0194C1E6] TTerminal::SynchronizeCollect
[01247B2D] TCustomScpExplorerForm::Synchronize
[01247607] TCustomScpExplorerForm::DoSynchronize
[012A54FB] TSynchronizeController::SynchronizeChange
[015EFA72] Discmon::TDiscMonitor::Change
[015EEE6E] Discmon::TDiscMonitorThread::InformChange
[764D62F7] USER32.dll
[764D6D35] USER32.dll
[764D6DE3] USER32.dll
[764D6E41] USER32.dll
[774D0107] ntdll.dll.KiUserCallbackDispatcher
[764E074C] USER32.dll
[01410A68] Vcl::Forms::TApplication::ProcessMessage
[019B3405] TSynchronizeDialog::Execute
[019B2AD9] DoSynchronizeDialog
[01247313] TCustomScpExplorerForm::DoSynchronizeDirectories
[0126D79B] TScpCommanderForm::SynchronizeDirectories
[01266D58] TNonVisualDataModule::ExplorerActionsExecute
[015B27D0] System::Actions::TContainedActionList::ExecuteAction
[0139A331] Vcl::Actnlist::TCustomAction::Execute
[01570708] System::Classes::_18201
[764D62F7] USER32.dll
[764D6D35] USER32.dll
[764D77BF] USER32.dll
[764D7885] USER32.dll.DispatchMessageW

[01A11FCD] C4799_0
[01A135A7] _ReThrowException
[0194C231] TTerminal::SynchronizeCollect
[01247B2D] TCustomScpExplorerForm::Synchronize
[01247607] TCustomScpExplorerForm::DoSynchronize
[012A54FB] TSynchronizeController::SynchronizeChange
[015EFA72] Discmon::TDiscMonitor::Change
[015EEE6E] Discmon::TDiscMonitorThread::InformChange
[764D62F7] USER32.dll
[764D6D35] USER32.dll
[764D6DE3] USER32.dll
[764D6E41] USER32.dll
[774D0107] ntdll.dll.KiUserCallbackDispatcher
[764E074C] USER32.dll
[01410A68] Vcl::Forms::TApplication::ProcessMessage
[019B3405] TSynchronizeDialog::Execute
[019B2AD9] DoSynchronizeDialog
[01247313] TCustomScpExplorerForm::DoSynchronizeDirectories
[0126D79B] TScpCommanderForm::SynchronizeDirectories
[01266D58] TNonVisualDataModule::ExplorerActionsExecute
[015B27D0] System::Actions::TContainedActionList::ExecuteAction
[0139A331] Vcl::Actnlist::TCustomAction::Execute
[01570708] System::Classes::_18201
[764D62F7] USER32.dll
[764D6D35] USER32.dll
[764D77BF] USER32.dll
[764D7885] USER32.dll.DispatchMessageW

Thanks for your report.

Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.