Okay so...
RED: Ambient. YELLOW: IR on substrate
Two problems so far that I really see. Because of the light being where it's at, the top of that right hide plastic is about 95 degrees and most likely still rising. Also the humidity is at 77 on that left unit and 56 on the right unit. I think that having the light so close is making that water evaporate really quickly, and raising the humidity way too much.