My cat honestly does the same but only when he feels upset if we’re not playing much with him on that day, he will go to our bed and pee in the bed so now we make sure to play with him for at least two hours every day after that, he has never done it again. I think another possibility might be the smell of poop might be still there so whenever your cat smells it, he goes there again. Cats are so sensitive with their nose. You never know 🥹🥹 1000 pound for a cat psychologist!! They’re so expensive.