Mine is like that too, they even replaced the awning material but I blame the tube not being straight, it does not matter about the temp it always wrinkles FR would not replace the tube because it was not bent enough, lesson for the next time.
"Well that didn't go as expected"
2015 Chev 2500HD Highcountry Duramax
Cedar Creek Silverback 33IK
Donald&Casey cairn terrier
Rest in Peace Mary my darling wife.
Scottish by birth Canadian by time.