Just joined the Heartland Forum and found this Thread. Got new Big Country last year with Lippert Level Up system. Shortly after, we noticed an issue with rounded entry door catching/rubbing at top left. We assumed expansion due to heat and cold, but it wasn't consistent. Had service look at it and they suggested new door since they saw no way to adjust. We didn't go that route right away, but just got back from a Glacier Park trip where we had an odd leveling issue that required some orange risers. Without putting 2 and 2 together, the door began catching at the top so bad I had to climb stairs and hit it at the top to get it closed. Of course it was real hard to then get it open again. We finally put 2 and 2 together when we were leaving, took the 5th wheel off the jacks and onto truck, and the door opened and closed perfectly--no catching. Obviously, the frame was torquing, despite using the Auto Level feature. We haven't done anything yet about checking the leveling yet. Not enough time and I'm on a steep learning curve on my rig, but now that I've found this, I will do some checking.
Unfortunately, I've moved onto a different problem with the slides and leveling--auto circuit breakers tripping, and resetting and now a dead manual reset 50a breaker. I'm going to check for a thread on that issue right now, then come back here.