As the others said, it could be that he's used to a screen cage and is now seeing his reflection in the glass. It looks like you have most things in check. I'm not 100% on the supplement schedule. I have a female vailed and give her calcium with every feeding, and the multivitamin (Arcadia LoD) every other week.
For feeders, you mentioned in your other recent thread, that he's on a cricket only strike. Understandable, some chams really love the movement/hunt. Have you tried getting black soldier larvae to hatch into flies? Or blue bottle larvae? My Jackson can be a bit picky too, he loves the hunt. I've found fly larvae are much easier to hatch into flies, than caterpillars into moths. Just keep the larvae in a warm area and they'll start transforming into flies in no time! You might have to order these larvae online. Also he's getting to the age where he might naturally be losing interest in eating everyday. Have you tried feeding him every 2nd or 3rd day?
Are you hand misting, along with the fogger/dripper? I recently switched from hand misting to an automated system. I've found that the automated system creates more humidity. I'd also suggest misting just before lights out. This gives them time to clean themselves and drink before they're left in the dark. Once the lights go out their first priority becomes finding a safe place to sleep, not drinking or cleaning.
How old are the bulbs? Reptisun Zoomed bulbs lose their UVB power after 6 months. Are your basking branches 8" below the UVB fixtures?
Is the bottom bioactive, or are the plants in pots?