Okay this they could fix really fast, they just have to change the masks properties to the same as, for example, the rebreather and it would show together with his hood.
But yeah, they should simply get rid of the disappearing hoods and make a "show hood" option, so we can choose if we want to display the helmet, the hood, both or non.
With this, even if the helmet would have bad clipping, we could still switch helmet or hood off if it really disturbs us.