2015, 32 Bit BIAB was a long time ago. BIAB did not handle VSTi all that well, if at all, back then as best I recall. It has made a lot of progress since then in this area. But here is an older thread which provides some direction.

https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=702086#Post702086


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 ).