I had the same problem on my 2012 Suncruiser, except the center of the FWS was sagging in the center. This was a result of the bolt attaching the slide to the ram had sheared off, causing the sag and ultimately dragging on the top of the basement door.
I would first check the bolts on all three Rams with the slide fully extended. If they are all intact, that is good news. Power Gear/Lippert has instructions on their website to adjust all different slide mechanisms they manufacture. The PDF instructions are intended for trained RV techs., but it may give you an idea how to make the adjustment if you choose to DIY.
Bill
2012 Itasca Suncruiser 37 F
Ford F-53 24,0000
2010 Chevy Equinox. Blue Ox & Brake Buddy