Collide mesh on child objects

[Enlil]

Hello,

I have found that if I grab a child object and create a collide mesh from it, no mesh is actually created, or at least my other physics objects do not register collisions with it.

The specific issue is grabbing a door object and rotating it to simulate opening. If I make a collide mesh from an object rooted in the world, the collide mesh works but does not update when I rotate the world. If I create the mesh from the child, no collision occurs.

What am I doing wrong? Or is there a better way to do this?

Thanks,
Christian