Active OneDrive makes whole environment 'sluggish'

I got news from Microsoft. The issue has been found and wil be solved in a future update. Somewhere in December. For now you can use the following workaround:

• Make sure all users are logged off from the host.
• On the AVD host, delete al subkeys under: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SyncRootManager
• Reboot the Host

Only a new small issue arrived, all OneDrive files are marked with a "brown box" instead of the cloud logo or green checkmark. But all works fast. This issue should be solved with the december update.