The brinsea has been working fine for the last 5 days, but I have one chick that keeps getting pasty butt. She is at the bottom of the pecking order for sure and although she is eating, drinking, scratching and running around, something is off. She has been alarm cheeping a lot and I finally caught her in the act... she was the only chick not under the brinsea. When I stuck my hand under the unit, I realized it isn't warm toward the front anymore and the chicks were all crammed into the back. Is there more than one element in the plate? I had to put in a red bulb in the backup heat lamp I bought and it seems to be super stressing them out.