Trying drag and drop on a remote SFTP site.
Drag from file pane to explorer (folder) pane.
Most of the time it works. Occasionally it freezes the client for about a minute (50s).
Freeze happens during the drag and drop, before drop takes place.
Windows OS stays responsive only the WinSCP window does not respond any operations.
The tried drag and drop is not being executed.
After such a failed try WinSCP recovers and works as expected, including drag and drop, without restarting the client.
I keep WinSCP up running for days, maybe it is some kind of resyncing to the remote server? Then a corresponding message would helpful, maybe with progress bar and when possible only freezing after drop target is clear and eventually executing the wanted operation.