Yes, it is the magnet tape and we cleaned it, cleaned out the ELGO sensor and guides are in good shape but still coming out of level at that only floor. I was misinformed. It's floor 1 which is the actually the second landing. Another thing we noticed was that after it stops out of level at that floor, we cycle power and after power up the car will relevel right back to where it should. Do these units do automatic recalibrations for the floor positions? We moved the reference reflector for that floor so we'll see if that does anything.