My boy doesn't like the mister either, normal behavior. Though I wouldn't spray him directly, just spray around him. but if he purposely goes into the mist, just let him do his thing.
Pictures of your current setup? What have you changed?
i took out the moss bridge, and started using the 75 watt bulb you suggested and cover the sides for humidity at night- the color change seems to happen when im in the room so he may be scared, how can i get him to warm up to my presence especially when needing to clean cage and mist