Adding Skeletal mesh breaks collision

Hello, I’m new to Unreal and i was trying to make a game starting from the Twin Stick pawn.
After debugging, i foundt out that adding a skeletal mesh as child of the object breaks the collision of the root.
(The object stopped colliding with the level bounds. Level bounds are set to block only pawn.)
Anybody knows what is the problem? I disabled the root mesh but i didn’t touch the collision.
Also looks like that only the root component of the Actor registers collision, but i see that the twin stick pawn comes with a separate collision component.