undo (macOS) not working correctly

[gewang]

report 1 (prc):
"Another “maybe it’s just me” bug in the Mini editor. After undoing a few times, something gets off and the restored text, and text therearound, starts turning into chum. i.e. after a fair number of edits, repeated -Z undo operations yield odd restore results after a few."

report 2 (mike m):
"Undo is not working in general for me with latest miniaudicle ! 😮
1.5.1.6
Actually, worked again when I restarted app, eventually breaks."