First let me thank you for this great app. I only recently discovered it and I really like being able to make separate groups with different measure lengths (for differences in measure lengths of chorus/verse, etc).
I accidently discovered a reproducable crash when I do the following:
1) create new session (default 4/4, 120)
2) press + in master group to trigger record
3) immediately press + in group 1 to trigger record
4) immediately press the same + in master group again to trigger record
the presses on + during 2,3,4 are happening while the count in is still happening and results in an immediate crash of the app.