Watchtower works fine except notifications.
Notifications are stuck on the very first one after launch of Premiere Pro 2020.
They won't refresh and will show you the first one again.
For example:
1) "No new files to import"
2) "10 files added to Bin" (but it will show again "No new files to import")
It does not affect import process, but it is confusing.
Only solution at the moment is to turn off notifications.
This bug comes from Premiere Pro itself, Adobe team aware of it, I hope next update will solve it.