One time I cleaned the Gym and never got the "I am Finished" though cloud. I found that one of the pieces of garbage fell behind the can. After I found it and put it into the can I finally got the "I am finished" cloud, then proceeded to sweep. Make sure you also look into the open locker and read the tablet check all pages. Then tell her you are finished. If she says to sweep, you need to sweep more. Make sure to sweep the upper level.