This issue is almost common for the 2016 FWS. When Newmar went to full tile the FWS needed to be beefier. Newmar will fix it. Just take it to the factory repair center. It takes a couple of days. Mine was done after warranty at no cost.
2007 Mountain Aire,2014 Mountain Aire
2016 King Aire,2020 Newmar Essex
2017 Ford Explorer toad