Skeletal mesh collision ignores

Hi everyone! I’ve already asked, but the question is stuck.
I have next situation:

  • I have an actor (A)
  • A’s root is static mesh (StM). It simulates physics, has thrusters and so on.
  • I need to add some components to it, which has animation, collision and so on, so basically they are skeletal meshes (SkM), but for simplification let’s think I need just one, but it should be attached (be the child), so I can do more of them.
  • SkM need only add its collision to StM, so it won’t influence its physics.
    How can I reach this goal? I’ll attach and explain some video examples of what I already did try on default assets.
    Please suggest any ideas, I’ll try to answer if it works or not ASAP.

First case : what I kinda want to achieve, but with Static meshes only.
Second Case : The Problem. SkM collision just ignores (but it set up as intended)
Double : if I enable simulate physics on both of them (parent and child) they are not attached.
Constraint error : if I enable physics on both and attach them with constraint they act really weird.
I also tried to attach only actors and some other stuff, but please any suggestions would be helpful.