i have a complex bp so as you can see all of the people that experience this have complex blueprints and noone of them can replicate it in a fresh project , i fixed this by changeing the editor startup map to another one , the problem was that upon restart the child bp class of my main character was reseting the mesh to NONE , the transform and the collision custom preset. It’s weird becouse the map that the old map had nothing in level bp and it’s using the same game mode as the new one