As I was searching for. MH the back checking for known issues I think I ran across needing extra cross braces for your issue like you have . I'm guessing you found out already. I would do more searches here as well as Google possible dedicated utube search. I found several threads "Travel Supreme cross brace/s" already but Taptalk won't let me open or I get full page of not related threads. Because phone app is not great as far as searching here goes.
If you don't get much help report post to have moved to owners section. I'm sure there is proper procedure to install them like being on good level ground find out all you can. Good luck as I know those are a fine coach seems like every brand model has something that good/needed to be addressed .
95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k