I opened a score to work on it and none of the expressions were showing up. Everything defaults to Arial. I have tried changing the fonts back in house style > edit fonts and as soon as i change it back I got to add a expression and it automatically changes back to Arial. Anyone know how i can restore it back to using Opus with all of the correct fonts?

Have you tried clearing your font cache?

You can do so with apps like OnyX, or via the following Terminal command (if you're comfortable working in Terminal)

[b]atsutil databases -remove[/b]

Also, check the FontBook for duplicated fonts.

Check out Jim's post. It helped me when I had a problem.

https://www.tapspace.com/forums/index.php?topic=3392.0

Thank you both for responding so quickly! I followed the directions on the link and disabling and enabling the fonts did the trick!