Good Morning,

and yet another problem turned up. My models dating back to A6.31 (I think. 32?) sink into the ground up until their ankles. I have noticed, however, their center differs from more recent models ( see here (external link)). Playing with the BB-settings just results in an absurd Bounding Box and doesn't fix the problem ( another pic ).

Since in A6 they still run fine, I assume something in the engine has changed. What is it and are there ways to fix it? I am grateful for any hints.