This happens on several of my games (I have 7 currently).
It's Multiball, things are crazy, switches tripping everywhere, lights flashing, insanity....
Then a flipper sorta lags once or twice out of 50 flips during the insanity. I swear it's always when a VUK is firing but I could be wrong.
Never to happen again... Until the next stupid long jackpot multiball fest. Not every time, not often enough for me to diagnose, just enough for me to post about it lol.
Anyone else have a flipper glitch out sometimes?