Daaang congrats!!! You jumped on it!!Probably is Jack's clutch mate, since this was their last late clutch! Hatchlings tend to be shy, being SO small and prey for literally anything, so you won't see that outgoing nature until they're larger.
I used a UTH last week when it got cooler, but set to 80. So it only really turned on more overnight. I just removed it since it suddenly became so hot around here since yesterday.