I helped a friend back his trailer into his camping spot. Once we got it in where he was happy I asked him if we should level it as it was noticably higher on 1 side. His response was "thats what the leveling jack are for". When he was done the side door was rubbing on the frame and was binding when he tried to open and close the door. It looked like to me that in the process of leveling the trailer that he had twisted the frame. This was a brand new StarCraft trailer about 26 feet long.
I would do what was already mentioned earlier, raise the jacks and then check the door for alignment. Then lower jacks again paying attention to the bathroom door. It is possible that things may have move abit and the door plate may have to be readjusted. I also would not move the trailer with the slides out, even for a few feet. It takes less than a minute to move them in.
Todd & Sheila and kids
2012 Surveyor SV-305
2012 Dodge Ram 1500 4X4 CC Outdoorsman