OK, it appears you have a relatively old version of BIAB (2021) and the BIAB-VST (V3.9.12). Sorry, I missed that. My initial response assumed you were fight current problems. You appear to be fighting old problems. When did it stop working?

Have you tried to install:
Band-in-a-Box® Version 2021 Update - Build 845 (Oct 29 2021)
Available in the support area?


BIAB – 2025, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, 1TB WD Black NVMe SSD, 2TB WDC Blue SSD, 1TB WD Blue, 2 TB SK NVMe, 6 TB External, Motu Audio Express 6x6