[2019] Crosshair disappears for all Weapons when using Snowball Gun

I got the new Snowball/Rock MP and tried it in some missions and free roaming while in a group. At some point I swapped to that Gun and then all Crosshairs and Scoped Views disappeared. Had to Log out and back in to get rid of it. Got it twice in a row as well. Seems also that this Gun is created as a Specialisation Gun, same as Nadelauncher,crossbow so you can't use it at the Spawn in Skirmish .Don't know if that's how it should be. Platform is PS4.