I don't have a lot of time right now, so someone else will probably do a more detailed look at it but I noticed a couple things.

For humidity, shoot for 50-60 with a bump before a shed. I feel like you're already doing that and the 80% reading was just because you had just misted though.

Half-log hides don't provide enough security for BPs. They really prefer to have hides completely closed in with only a small opening, and small enough that it's kind of a snug fit for them. You can use anything; the plastic bottoms for flower pots with holes cut in them work nicely. But it'd be good to replace that with something more secure. If hides offer different levels of security, they may start to choose security over thermoregulating.