Quoted from Agent_Hero:

Cross-post from the Heighway support thread:
My Alien was one of the Texas Pinball Festival prototype machines and I finally got around to swapping in the replacement parts, though I'm not sure where these items in the attached picture go (I have dozens more of the plastic caps not pictured):
Also, the new Xeno head seems to be active with its jaw moving (seemingly) as it should in test mode, but the tongue is not moving for me. It shows an error for a stuck switch--is it referring to the switch under the top half of its head? That switch appears to be fine.
Finally, would anyone have any ideas for a way to frame and protect the "in play" edges of the lower playfield LCD? Seems like the clearcoat in that area could chip/flake/crack.

Quoted from Agent_Hero:

Yes, it looks like 40 light tubes and 40 white boards--the LED blocks are supposed to be "broken down" into individual LED's? It looks like the existing LED's under the playfield, those that are plugged into boards similarly to how these would install, are broken down versions of these. I assumed these were supposed to remain together but obviously there's no continuous run of LED's that would fit such an arrangement. So the old LED's don't work with the updates? They seem to be fine in-game for me currently.
Re-reading my emails with Helmut shows that the black plastic item is the "Hyper Sleep lock" and my old one was acrylic. Why the update there?