2.43 RC1 screwed my physics?!

EDIT: okay nevermind, i figured out that the collision on everything got turned back on, so everything inside the bounds cube had collision, and thats why it acted weird, so ignore this post please

I had a car set up in 2.42 that I was playing with, the vehicle used an invisible cube as bounds, and everything worked fine, but then I used 2.43 RC1 to render bake my mesh, and now the cube that’s used for the bounds moves really weirdly, anybody else had this happen?