MODO Drums is still listed as working on Windows 7, 8.1, and 10.
I determined the font that it is using, and my plan was to delete the font and then reopen MODO Drums (basically forcing it to use a different font). This worked for others in the past. However, the font it is using is a system protected font so I can't delete it.
Again, I wonder why MODO Drums has issues with fonts at all.
See this post from 2019 with the exact same issue:
viewtopic.php?f=39&t=22067And ST 4 had to be updated due to a similar font issue.