Pebbles was simular, at first her litter pan and Yesterday’s News didn’t bother her and she used it all the time. Then she decided that she didn’t like that set up any more, started digging like a crazy idiot – kicking litter, poos – everything out of her litter box. I would sweep it all up, and put it back in her box and she would go to work digging again. After some exasperated looks between us, I tried something…. Cleaned the litter pan with a bit of vinager/water mix, dryed the box, then layed 4-5 sheets of news paper in the bottom, added the litter (a cup full in each corner) then put her “spent” hay over the top of everything. Digging in the litter box hasn’t been a problem since. I do believe she didn’t like the texture of the litter under her feet. Not sure if her feet where getting wet, or if it was too “rocky” – but, give that a try – providing some softer texture to the litter box.
And I also have provided Pebbles with several shallow boxes with “spent” hay that she digs in – but doesn’t seem to poo in.
Rabbits just like to be entertained by us hoomins trying to figure out what is going on in those fuzzy little heads. 