Unbreakable has had some bugs since it's changes this episode. - when used with shackle grenade the shield will do the blast after only a couple seconds regardless if it has energy or is being charged. - swapping between grenades will allow you to hold the shield for the max duration without needing targets to hit the shield and charge it. (except with shackle grenade for the reasons above) - don't know if this is a bug but the overshield is charging extremely slowly compared to before the changes. You can barely get half of an overshield with it.