I have two female cats, both are healthy and neutralized. We used to live in an apartment and I had this huge container box in the hall as a shared litter ( I tried to have a separate litter for each but they ended up doing it in the same one somehow).

A few months ago we moved to a different apartment, got them a brand new fancy litter. The cat on the right from the first day started doing her business with absolutely no problem, the other one on the left pooped on the floor.

We thought that maybe she was just nervous about a new house but it’s been 8 months and she never poops in the litter, she pees in it but no poop. She does it everywhere in the house. We tried to get her a new litter, change the litter spot and still nothing.

It’s starting to get on our nerves, we get back home to a smelly house cause it’s either in a bathroom, my room, living room…Any advice? Thanks !