I feel your pain. It seems Winnebago is using some adhesives and materials that do not handle the heat very well. I suspect they are less toxic, lower VOC, smaller carbon footprint, blah, blah. Not that there's anything wrong with that, but they should at least make sure the materials work before substituting them for their not so green, but proven predecessors.
I have some peeling wallpaper, and the backsplash sheeting behind my sink, oven and counter top looks like a funhouse mirror. The wallpaper will be pretty easy, but the cabinets and window were put in after the backsplash. Great idea!
2020 Winnebago Minnie 2401RG
2014 Ram 2500 CCSB 4x4 6.7CTD