I played BG2 with Baldurdash-WeiDU, BGT 1.01, BGT-Tweak, TS 6.11, NeJ 6.91, and BG2-Tweak. It hung randomly upon entering areas DeArnise hold and Copper Coronet, and upon entering the room with dead Khalid in Chateau Irenicus. Moving to these areas via console also doesn't work. Renaming the areas in NI seems to fix the problem. After trying different combinations of listed mods, I managed to find out that Baldurdash/WeiDU is the one responsible.
Have anyone else encountered this problem?