Our new ferret won’t use the litter box despite weeks of patience

We adopted a ferret about a month ago, and while she’s super playful and affectionate, she just refuses to use the litter box. We set it up in a quiet corner with the recommended type of litter and even tried placing her in it right after meals or naps, but she seems to prefer peeing and pooping in random spots around the living room. We’ve cleaned the accidents thoroughly to avoid scent marking, but nothing’s sticking. I’ve read that ferrets can be picky about cleanliness or location, so I’ve been cleaning the box daily and sometimes moving it closer to where she tends to go. Still no luck. Has anyone had a ferret that took a long time to get litter-trained? Did you use any special tricks or tools to help them understand? Also, could the type of litter be the issue, or should I be looking at a different box setup?