Hi Yuriy and thanks for your reply !
My watched folder is in a Google Drive Mounted folder.
From my side, I also red this timing issue between drive and Fontbase.
I’ve tried to deactivate Fontbase autolaunch, then open it manually the time that Google Drive opens properly, but the issue was the same.
I will try really soon the tests you’ve suggested in the other thread on this topic here > Fonts deactivating during system restart - #8 by yuriy
Bests
Hugo,