I got the same result. I used Halion Sonic as my default sound source. As long as I left everything on the mixer (in Sonic) alone, everything seemed to work fine. However, once I started moving the sliders around, I got an exception error and ultimately BIAB crashed on me.
So I can confirm this is an issue.
John
Laptop-HP Omen I7 Win11Pro 32GB 2x2TB, 1x4TB SSD
Desktop-ASUS-I7 Win10Pro 32GB 2x1.5TB, 2x2TB, 1x4TB SATA
BB2025/UMC404HD/Casios/Cakewalk/Reaper/Studio One/MixBus/Notion/Finale/Dorico/Noteworthy/NI/Halion/IK
http://www.sus4chord.com