Pushing a system with an horizontal frame causes layout problem
!This seems to be a UI issue and doesn't do any damage that I've found! It's just trippy.
I'm on a fully updated Windows 7 machine. Got the error on the release 2.0.3, but I tested in build 2.1-15a2ba4 also.
Edit any thing in the attached mscz
Hit ctrl+z to undo, or use the undo arrow in the ribbon
Saving during this does not seem to damage anything, the file reopens normally.
Making any edit returns the UI to normal.
Thought I'd mention because I'm trying out some quarter tone things and added a frame, and I haven't seen much usage of the note element tuning, microtone accidentals or frames.