System error. Code: 1400 Invalid window handle

Hi Community,

there is a reproducible issue using the function "Keep remote directory up to date":

After running mentioned function (details in screenshot) WinSCP will unexpected break after a few days with error message "System error. Code: 1400 Invalid window handle" and the synchronization will stop. Users can start again and it will run for another few days. But it will break again.

How could it be fixed?

Thanks for investigation.

From the names of your screenshots, I assume you get the problem (only?) when running WinSCP via TeamViewer. Is that correct?

I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.