We have a cat that for awhile would pee on the side of the litter box, not in it, but on the outside of it, took him to the vet, got some pills.........that didn't work, got a new littler box, boom problem solved. Strange kitties.......
Nope....mine did the same thing.
I've had a lot of cats over the years & this one I have now is surely different.
She did not like the inside of the cat box dirty. Now if that makes sense.
If I clean it out once in the morning & once in the evening...she's 110% happy. I had her going strong in this routine for 6 months...no incidents. I forgot 1 stupid day....& she let me know by peeing outside of it. Prior to that....it didn't matter how many times I cleaned it....she did not like it, so I went out & got a new one. Presto...she was fine with that.
Cats are funny. I've had cats that would sit outside their box & meow until you cleaned it. They wouldn't go elsewhere & had to go in the box...but didn't want to go in until it was cleaned out. Most of the cats in the past were ok with every 3-4 days with a cleaning (1 cat per cat box). If there were two cats....it was every other day. I've seen some go longer...but mine is so picky it has to be done daily or else.