[Need Help] Taking object from inventory to my Character's hand (spawn of and attach him to an actor

I’ve found the problem.
It’s from my weapon blueprint.
The problem is here :

I need to move my skeletal mesh in my blueprint out of the “itemMasterPhysics” and it works.
But if i do that, my weapon doesn’t have physics, and he appears on the bode of my character, no like i want in the socket.