Okay i installed build 912 (from 908), and all the same things are happening
1.no sound when clicking on piano role note or keyboard
2.when i record melody to a particular bar,
the first window appears correctly with correct bar #,
but then another combined window appears along with with record audio option,
the chosen bar does not appear, and start of song does not work,
instead it uses whatever bar you entered in the starting bar.
3. when recording from a bar, it starts 2 bars early, and always plays the previous recording, even if overdub is clicked.

i upgraded from 2020, and none of the problems above were happening.