Not sure if anybody else is having an issue with the glass barrier door. Using it in my game slows it down considerably for a few seconds and freezes it, as if the game is trying to recalculate the area of ALL the habitats again. The game will stall for a minute or two and then goes back to normal. At first I thought it was a new formula for all door barriers that was being implemented, but nope, it's just the new glass door.