Oh, that is a bit of a sticky wicket.

J can you send me your BIAB mgu file and I will use current 2021 to export to WAV and send you the new file. It has been a rough couple months with the 2021 launch, but I am not hearing any problems like this being reported recently. I tend to do all my exports via drag and drop in the BIAB VST and have no problems. But if I can help, glad to do it.
Dan


BIAB – 2025, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, Motu Audio Express 6x6 - My SoundCloud (Tip: No need to create a SC account to hear music - just hit ESC ).