I did the Covers too now, so if you wanna test that too (Indev), that would be nice. ^^
The Rotation Mechanism works by taking whatever the previous Rotation is and rotating it by 90°, 180° or 270° so it may need a LOT of testing for all the BEFORE&AFTER cases…
putting 4 differently colored covers on one thing and then rotating it 90° then rotating it again but 180° and then rotating it again but 270° should do the trick, note that this does NOT mean “rotate it towards North/South/East/West” because you can pull that off with three successive 90° rotations.