I haven't heard of it but I will let you know Friday. I just installed 2. I didn't install the bracket to the side of my Wildcat but I did install the tube stopper so it hits the wall if it does unroll somehow. It seams the tension is strong enough but I am considering putting the brackets on and not worrying about it.
*Current: 2005 Ford F350 Crew Cab Dually 6.0 diesel 4x4*
*Retired: 1987 F350 Crew Cab Dually 6.9 turbo diesel
2007 Forest River WildCat 32QBBS