She's 20 weeks old and not starved for love and attention. We've trained her to use her litter tray and she was doing perfectly.. until a few weeks ago when she decided she was going to poop next to her litter tray instead. She pees in there fine, she just poops RIGHT NEXT to her tray. I tried moving her tray to her new spot, and she just poops where the tray originally was. And when I move the tray back to the original spot, she goes back to pooping in her new spot. We keep a clean litter tray, we feed her well, we have no other cats so she's not starved for affection. We haven't just moved or anything like that, we've been in the same house since we got her at six weeks. I honestly don't know what to do - I'm not home all day so often when she poops we come home and it's stained and attached to the ground and is awful. Helllllp.