I’ve setup the tires as static meshes, attached via socket now. Then also setup the door as a separate skeletal mesh, that is attached via socket. But I still have the same kinds of issues.
Edit: I got it so that it is simulated at the start, then when I try to interact / open it, it snaps to the end position of the animation, then physics stop working. I am disabling physics, animating it, and enabling again. That breaks it somehow.
Edit: I got it working! Almost. It does work, but it starts to stray from the socket connection when I start moving faster and faster, when physics is turned on. I think I saw a fix for that, but forget what exactly. I thought something like checking an option to update physics faster.
I think the issue Might be from blending physics off and on after enabling. I removed that node entirely and I think maybe was it. But I also was changing the bone setup. So I need to figure out for sure what it is. I’ll report back.