I have BIAB 2021, build 835. When using the conductor window, I have “enable control by qwerty keys” checked. Below that for both default modes I have checked "next bar". What this means if while a tune is playing, and you press one of the qwerty keys like "5", BIAB finishes the current bar that's playing and then at the beginning of the "next bar" it goes to the beginning of the last chorus.

On both of my computers, this happens: After pressing "5", BIAB finishes the current measure and at the beginning of the "next bar" the notation window immediately goes to the beginning of the last chorus as it should, but BIAB continues playing as if I hadn't pressed "5". It doesn't play what's on the notation window. Since BIAB is not in sync it usually crashes.

Since last December when BIAB 2021 was introduced, some of the members on this forum have verified this bug, but since most of you don't care about feature, the developers at PG Music will not fix this bug.