Hallo, this is a direct circuit between buttons and the coil. Check that your current flows thru the EOS (the blade switch), that the Eos is closed when the bat is idle.

If nothing moves at all, check all fuses first, on the aux power driver board and power board.

Then I suspect either a bad button switch contact that was making the weird effect, and that is now out of order, or a bad adjustment of the eos, or a bad eos switch.

You mean the flipper button contact. If the 2 contacts are not one in front of the other, or a break in the switch. But I would care of the coil eos first

Noooooo. They do not.

The thing you can do is to remove F6 and the few other fuses from their socket and measure the continuity between the 2 ends of each, with a DMM position ohmmeter.

Good news. It s peanuts to solve