why clean clothes in hamper

I am experiencing the same thing as the OP. I have no mods in my game. It seems after awhile, I lose the option to put clothes from the hamper to the washing machine. and when I hover the curser over the greyed out option to put clothes in the washing machine. It says that the clothes are already clean...I have never clicked and dragged the clothes on the floor to the hamper. I am not using additives in the laundry.

I removed all of the hampers, and when they spin to change clothes...some of the piles are "used" some of the piles are "clean." according to SimGuru Graham, the are supposed to always say used or worse when changing clothes. I am going to put my hampers back in and when I do laundry I'm going to sell the clean laundry in my sims inventory. I wont be able to get the positive moodlets, but I don't know what else to do. Its really annoying. I hope they fix it soon.