A couple years ago, I watched a couple that was parking next to us attempt the set the SOB rig up with the Lippert 3.0 leveling system. They had the same problem, and after over an hour, finally got it working. The woman fortunately had the Lippert app on her phone and was able to go through the steps to reset the system. They had to reconnect the truck and lift all the jacks manually, and then start again from there. Not sure what additional steps they had to do, got did get it working.
Bob & Becky
2012 Chevy 2500HD D/A CC 4WD