My cat will get stuck in this!

The whole point of buying this is was the swinging door to keep litter scatter to a minimum. When the top is on properly, it swings in but there is a lip along the bottom that catches the door and keeps it from swinging back out, trapping a cat inside. I can pull up the top and let it just sit on the lid without snapping it, but it looks awful and if it happens to snap down, my cat will be stuck in there. It's too much of a pain to send back, and we're moving to a new apartment in 2 days. I wanted to start with a fresh box, and now I've got this cheap thing that I'm scared to let my cat go in. Horrible design.

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