This is an easy fix and
FACTORY TAKE NOTE!!!! This should be done on installation!
After you re-center the awning on the roller (easy to move back and forth; just relax the arms and "flap" the awning) so that it goes up and down correctly; drill a small hole through the awning material and the roller and pop rivet the awning to the roller so it does not move in a wind.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW