Big Sur 11.1. upgrade removed all my fonts, neither can I install new fonts
After upgrading to 11.1 all my custom installed Fonts are missing.
They were in /Library/Fonts and ~/Users/User/Library/Fonts/
I was also using a symbolic link (ln) from the system folders to a Dropbox folder, to have all fonts synced on my computers. Even after removing the symlink I can't get it running.
I am also not able to Install new fonts via FontBook. No error. New fonts are just not added to the list.
When installing new fonts, they appear in the /Library/Fonts folder, but aren't visible in FontBook or any app (Adobe CS).
What can I do? Before 11.1 upgrade everything was working.
iMac Line (2012 and Later)