Quoted from schudel5:Yours is correct. The 67 is shown on all faces except the 4th (flesh) face.
You may want to do a factory reset U8. I had a problem with mine kicking a third ball in the trough when both pinballs were locked in the eyes. I did a factory reset and it's been fine for 30 games. Worth a shot, but your face test is exactly what mine does.
The reset fixed yours because you had tournament mode on (can almost guarantee you did). The reset turned it off. The tournament mode has a bug that will give 3 ball mb.
If it didn't help the OP his issue is separate from the tourney mode bug.