Can't sync new files

I haven’t been able to sync new files lately.
I eventually figured out how to find the logs in Windows.
What can I do about this?
2022-03-04 20:12:25:743 [ critical nextcloud.sync.csync.vio_local C:…csync_vio_local_win.cpp:204 ]: CreateFileW failed on “C:/Users/Huffi/Nextcloud/Documents/zzz.pdf” “WindowsError: 3: The system cannot find the path specified.”
I think this started when I moved a folder to another subfolder and nextcloud got confused. Since then I haven’t been able to get any new files to sync.

With this error, I found one bug report related to Windows defender:

I you can reproduce the problem, you can directly file a bug report.

I managed to fix the problem by moving the folder to a new folder and then back again. I don’t know how to reproduce the problem.