Got the answer.
Ok. We found out what it is. It happens by accident or goes into this mode (if), you happen to have a pallet collision with something (like we did last night). We were Tri-Locking and indexed to the next pallet but the Tri-Loc and pallet didn’t drop all the way. Not sure why it didn’t drop fully. Like the Tri-Loc stuck a bit. It had a lip of about 1/16” (I happened to be right there watching the Tri loc process and once he rotated the pallet to do the next one, I still stayed in place (raised up a bit) and it snapped away from the frame and knocked the end contact point off of our Tri-Loc.
So keep a good eye on it when Tri-Locking and indexing. Make sure it’s clear first and the pallet fully drops.