I hope somebody's been through this before and has an answer, because I've found nothing in my searches.
I recently did a set of warm-ups for my high school band. In doing this, I created a bunch of custom expressions for instrument fingerings and visualizations for articulations. Like this:
Figured I'd send the dirty version of the score out for our staff to double-check, then would clean everything up and get parts ready to give to the kids. However, I just opened the file back up, and all of those shapes are gone. The expressions are still assigned, but when I go to the expression window where all of them were stored, it's empty, like this:
Is there a way to get those shapes back? Obviously, it printed (PDFed, anyway) okay once, as I have the "correct" version to show. But it would really stink to have to go back and redo every one of those again.