I'm having this same problem
.. Before She would go on her pad even if she was n the middle of playin she would run to it.. now she islike ok this is a good spot
... then before bed i try to make her go all she does is sit and and lay on it i have to take her out side and after 2min of stareing at me then she will go... but when im at work and she is in her area (my hallway) she goes on her pad everytime
..