Dropbox working on one system but not the other

[haralds]

I try to rip everything out and reinstall, no go. Comes up on the menu bar and then blows.
Invalid signing and entitlement.
spctl is fine.
Stapler finds the notarization valid.
Not sure what is happening.

 

[haralds]

Solved. Turned out to be a corrupted font in ~/Library/Fonts