Wrong font after OS upgrade (Linux)

Just upgraded from Debian Stretch to Buster (with kxstudio repo) and ardour is now running with a difficult-to-read serif font. (See attached image.)

shot-2020-01-10_17-25-33

This font is used EVERYWHERE in the application and is pretty horrible.

The file ArdourMono.ttf exists in /opt/ardour/share and appears to be the old Ardour font I knew and loved but is apparently not being used for some reason.

Any ideas what is going on here and how to fix it?

Yep that fixes everything for me too. Sorry I missed the other thread.