if the problem occurred by the overheated coil maybe it's a power supply problem

Nope. You have a lamp socket that is dead shorted. Put it into single lamp mode and go through each one. As you do, you will see it lights up multiple lights on each one until you get to the one that doesn't light. Look at that socket. I bet that the two tabs are slid together or touching something. You probably did it when you were working on the flippers.

Not very many 44 sockets for the inserts on T2. There is one next to the flippers.

Bet that is the one...

Are we taking bets?

Can this same logic be applied to an EM machine? I have two rollovers that ghost. The rest of the inserts with LED's do not ghost.

Yes!! Wish someone would have bet me.

Not sure on an EM but it is possible. Usually just two could be a bad LED. Try swapping it back to incandescent on those two. If it STILL does it, then it could be the same thing Strummy had. If it is a loose wire or short it will do the multiple lights no matter what kind of bulb you have.

I doubt a bad led can cause this. Also the rollovers if they're next to each other may be bleed rather then ghosting

Yeah, they flash when there is activity going on such as scoring or the flippers working. Bleed would be stray current from another wire?

No not from a wire. From another light. The rollovers are clear and nearby light could sort of cause it to look lit when its just a neighboring light flashing and the light from that shining through.