I suggest you buy 2 Medium hides from Reptile Basics for $4.99 each. I understand you have the Log Hides against a wall for one entrance but that is not the problem, the problem is she/he can be seen from the archway door. They need a Hide that has the door on one side and all the way to the Right so that they can lay inside on the Left and not be seen at all.. Once you get that BP's will hide for days on end. A hiding Balls a Happy Ball.
http://www.reptilebasics.com/medium-hide-box