I started a new game in Throne Of Bhaal (just to test out the mod) in the GOG version of BG2:EE, I used version 0.79.24 of this mod, and like I said it was a clean install with no other mods. And it wasn't just in the inventory of a character using a class from this mod. Although the only other character I tried it on was a fighter/cleric so maybe it had some effect?
The weirdest thing is that I downloaded the last stable release of the mod and it seems to be working fine. I don't have the same freeze at least.
Edot: oh, the game version is 2.6.5.0