Hey, had the same issues recently.

Play around with the metronome count in, pre count bars, etc.

I can't remember what I changed, but I seemed to have found a combination that works.
My current settings are:
- Allow lead in bars (all songs)
- Play lead in even if intro present

- 1 bar lead in, not ticked

- Lead in type: 2 bars a pattern
- Audible lead in, vol 64 (side stick, 1 3, 1234)

Good luck...

(Agreed, it's very buggy, I almost wish I hadn't updated. But with patience and frequent restarts, and saving frequently, it's workable. Also, freezing all tracks when possible seems to help.)