Problem:
Workspaces are not synchronized asynchronously:
Cause:
If the asynchronous synchronization does not work it is possible that the TimerJob with the name "Collaboration Manager Task TimerJob" was not installed correctly during the installation.
Solution:
PowerShell: Please enable the hidden feature with the ID "6db7f4c2-1d32-403d-9088-ab9dbe027f59" on the Central Administration.
enable-spfeature -id 6db7f4c2-1d32-403d-9088-ab9dbe027f59 -url "URL CA"
Then please check if entries in the hidden list "CMTimerJobTasks" are written with the URL "Lists/CMTimerJobTasks".