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.
tried the latest version, there should be something fixed:
HS SE 3.2.15 (For Halion Sonic the latest is 3.2.10)