Uh oh, looks like the level 7 medal still isn't working.
Level 7 is the hardest by far. I thought I had tried every single combination, but it turned out I missed one somehow, which I then found by keeping in mind the clue that the edges loop around to the other side.
The game could use an indicator that you've clicked a tile by highlighting it. Also, once you've beaten a puzzle and then click it again, it makes you do the whole thing over again. It should either prevent you from redoing a puzzle or just give you the option to exit the puzzle back into the room. Also, the rotating dial puzzles move way too slowly.