I'm try to load my first 'creature' model in the game but it ctd's once I get to it's cell. The warning.txt states: "Step box height of 0 on Larva00000000". I tried to google it and found someone with a similar problem on the nifskope forums but that guy wanted a flying creature and tagged that button in the cs and it worked. I tried that with my model and with flying movement selected it doesn't crash anymore. But I want it to walk or glide since it is a Larva.

Any tips on this error?