Yes, its not uncommon. The issue is that the cable support arm is a supposedly flexible strip of plastic. At the outside end of the slide, it is rigidly attached to a post by driving several self-tapping screws through it. That damages the material by creating stress points at the screws and then the flexing and sideways shear forces at those screws causes the plastic to tear. If the Flex Guard (brand name for the plastic part) is over the wheels, it falls down onto the wheels. Mine didn't (was behind the wheels) but I held it up with a bungee cord until I made a permanent fix.
Here's a link to a current thread
discussing the issue and I posted a link to a previous thread on the same subject in post #9.
2015 Rockwood Signature UltraLite 8282WS Platinum, GY Marathon LRD, TST 507RV TPMS
2005 GMC 2500HD CCSB D/A, Curt E16, Prodigy P2, Garmin RV760LMT w/BC-20 b/u cam