"Keeping remote directory up to date" turns into a error: "Abnormal program termintaion"

If I start the the "Keeping remote directory up to date" feature with the shortcut (Cmd+U), then it starts with the sync and will turn into an error: "Abnormal prgram termination".

If I transfer the files manually, then it works fine.

I also tested another server and directories, but got the same error.

Running on Windows 11 Home 64bit.

Session Log with Debug 2 level is attached.

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 a link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.