My Flash has just recently begun to Tilt for no apparent reason at all. The weird thing is that it only happens when the ball goes over the rollover wire on the left of the machine behind the left ball kicker where the ball rolls to the left flipper, nowhere else. In trying to check it out I found out that none of the tilts work when I try to set them off manually other than the plumbob tilt.
Maybe not related but at the same time I have noticed that with the 4 lanes at the top where a launched ball first drops through, if the ball goes down #1 it lights #4 also (and visa versa) but #2 and #3 work normal. The MPU and Driver boards were recently replaced with a combo board but these problems just recently showed up.