I don't know if you know already about this issue on Mac/BIAB...
I am under mac mojave and I have confirmation that it is the same thing under big sur, there is a problem when writing chords especially when adding the bass different from the chord, it's BIAB who randomly chooses the note, we type F he writes A etc
with the "chord option" it is the same, he refuses to write the bass one chooses and biab chooses another one, another time he does not want to enter do # and you have to write D flat, it's really painful and it takes 3 times longer to write its score or its main page, with the"chord generator" tools it is better but it happens also sometimes.
I strongly suspect that this bug is specific to Mac, I do not remember having had such setbacks with previous versions, I would like to add that there is a lot of menu and submenu with French translation errors, not to mention spelling or typing errors ... it's less problematic but it's not serious.
best regards


MacBookPro M1 max, BIAB audiophile 2024, Logicpro X, UAD apollo, ASR10, marshall, peavey, Vox, Guitars...