Stern no longer ships the cable in the game to carry 120V to the door from the backbox. Your distributor should have some on hand or call Stern and ask them to provide it for you.

I am having the same problem, and am going to try Loctite. No room underneath to attach a nylon nut as the post is directly under the upper flipper bracket, and the existing post doesn't extend past the bottom of the playfield anyway. We will see how that works out. Might have to cut a notch in the flipper base plate and try something else if Loctite doesn't work.

JP2 is not the first. I believe it was several games back when Stern stopped providing the cable in all NIB games. There was no announcement, Stern just stopped providing the cable, but Stern will send the cable out if you call and ask for it.

JB Weld might end up working out just fine. I decided to apply a fix that should hold up and be serviceable, too. Took a spare flipper baseplate, ground some material off of it, installed this flipper baseplate in a slighter different position, maybe swiveled it about a half inch to fully expose the t-nut. Now there is room for a longer post with a nylon nut holding it in. Used an old post from my parts bin that has a longer male thread. This is a location game and I just didn't want to keep messing with this post.

I used a standard sleeve post with a #8 thread, using a nylon nut to fasten it on the bottom. I saw a similar post on pbresource.com in the post/screw section. I looked at using a drill and decided it would be easier to just use my bench grinder. Couldn't work on the baseplate in the game as I didn't want to get metal shavings all over the place, so I knew the baseplate had to come off anyway. That section of the flipper baseplate is a curved edge and would be difficult to drill, it was a snap using the grinder. I always keep spare baseplates so I reworked the spare and changed it out for the original baseplate.