he either doesnt feel secure in that hide or the temp isnt right. he may like the cool side and choose the hot side after he eats. i only give mine one hide on the hot side and if they want to cool off they will lay on the cool said and just hang out. but most of the time they are on the hot side, which is where i want them so they stay warm. as long as all ur temps are right then dont worry, he will go where he wants.