I don’t remember if you tried a larger litter box, lower, different shape, etc. My little boy is currently doing the same thing. I noticed a while ago he was peeing just in front of his low profile litter box. But he wasn’t doing that with his high profile box. I just took a dish cloth, folded it, and placed it under the lip to catch his pee. Yesterday morning he was in one of the spare rooms, and he walked on the bare wood floor to get there, so I figured he woudl make his way back on his own. But he didn’t. None of my bunnies like walking on the bare wood floor. He pooped in the room, and flipped over the plastic vent guard, and used it as a litterbox to pee in. I’m glad he thought of using the plastic vent guard, instead of the carpet! I pulled the rug closer to that room, so he would feel free to step out. No more problems there. But he is peeing in front of his low profile box again. It is on the folded dishcloth, but still… I think I might try a higher profile box. He has numerous litter boxes). He is just finishing a course of antibiotics, so it isn’t a UTI. So… that’s what I’ll try next. Remind me… have you tried different litter boxes? I don’t always use the expensive animal litter boxes. Anything that has the right shape – and is inexpensive – will do. Even a plastic storage container with an entrance cut into it.