PanaPinResto, can you please post a short video at startup? basic view of the play field back box.

requesting to see all the boards & under they play field, Mine was doing the same thing. On my 2nd gen Harley Davidson I had some start up issues with broken connections on solenoids under playfield, you'd be surprised how it kept the game from coming on no lights on the play field it would only lite up the "opt" on the Harley and through ball lane that's, plus leds on the boards, nothing else worked.

start digging through all the solder connections under the playfield, look for cold solder joints.

I will admit that's some serious alkaline damage near the rom that saves all the games and settings, Stern said they just made some more these White-star boards in late February early March

I added a any-pin NVRAM to my board been working great since.