horse clothing bug or something

hi folks, i’ve got a problem that as started since the naturalist update i believe. i can only hold 5, sometimes 6 if i’m lucky, outfits on my horse when i should be able to hold 7. it says it’s at maximum capacity when i only have 5 or 6 outfits on there and it’s super annoying.

has anyone else experienced this at all? and if so, has anyone found a solution to it? i like my outfit variety 😤