Pottery wheel in home not working

I bought the business and hobby pack, but I'm having issues actually using the pottery wheels. When going to another lot with my sim it can use the pottery wheels there, but when trying to use one at her own home/business she can't use it. Neither can any of her customers, with the pottery wheels on her lot. They all say that there's someting that causes them not being able to reacht it (no specific thing) even though they're already sitting at the pottery wheel. I've already tried removing and placing them, moving lots, restarting game etc. Anyone got any ideas?