I’ve got a Bram Stokers Dracula that has a strange problem with the Mist Multiball. Wether in the game or in test mode, the motor that drives the magnet across the bottom of the playfield pulses 2-3 times a second instead of running smoothly. I’d thought it was a motor dying, so I replaced it with a brand new motor assembly, but the new one pulses just the same. Both new and old motors pulse even if the drive rod the magnet moves on is disconnected and the gear box is not connected, so it’s something electrical. Anyone else ever see the motor pulse instead of running smoothly? Any idea why?