Cant get my chaos vehicle tank to work

Hi!

I’m trying to create this tank with ChaosVehicle but I just can’t get the physics to work. It kind of always ends up with my vehicle balancing on something invisible like in the video.

In the video the wheels physics are set to Default. But the only difference in Kinematic is that the wheels don’t fall of.

Any idea what’s the cause of this?

Video


The mass aligment of the body is different, is this normal? I’ve tried changing the direction of the bone in the skeleton but that doesn’t seem possible. I just can’t rotate it correctly. I can rotate the collision box so the mass thing is aligned but well then the collision box is completely wrong instead. But it seems to stabalize the vehicle a little bit at least…