Collsion problem with SM attached to character

Hello,

First, I m pretty new on the engine and not English but I ll try to explain my problem the best I can

I’d like to add different melee weapons to my character, so I ve created BP actors, they’re correctly added to my inventory and equiped unequiped, the problem is that if I attach one as a child actor blueprint to my character mesh, it collide with the world and make me glitch, jump around the map.

I ve done it like this,

On the event begin play, i ve hidden all the SM, for now only one because it does even with only one.

Equip i show the actor and attach to componant, the socket i ve created in the right hand.

Even when I start to play without any weapon displayed it does it.

I ve tried to put different sockets for each weapon, tried to attach it and simply display it on event begin play.

I ve played with the collision setting on the SM, can’t figure out what i m doing wrong, and it does it with all of those, but it works with a pistol skeletal mesh I ve set the way I said earlier.

Any idea?