parapente,
Sorry to hear about your issues. I must admit, I never tested Flac only with plugin or RB for that matter. BIAB main program runs fine. I use it almost daily and didn't notice anything of concern as far as Flac goes.

Yeah, I think your experience is unacceptable, but give it a few days. I have seen on a few occasions they released hot fixes in a very timely manner. Let's see what PGM says. Perhaps it's an easy fix. Flac was a major change, I am sure it's in their interest to make things work.