I have a 2015 ACE 30.1 that had the same issue. Those tracks in mine were secured with short " U " style staples into the plastic track. However some were in correctly some were not. The curved part in mine was " Luann " (not sure if that is correct) about 1/8" thick plywood, it will curve but the pressure that's put on the tracks was is to much.
I did redo mine using small 1/4" X 1/2" trim wood secured to the wall and ceiling with short screws 1/2" or less. The curved part in mine does not have to be curved by just mounting the wood strip a little farther down the wall and the ceiling strip a little closer to the back wall so it just kind of pops in it can be straight and the slide will clear. A side benefit of this it allows me access to wiring behind it easier.
Would be glad to send pictures, but RV in storage until April and can't get access.
Note: The wall and ceiling paneling is glued to a piece of (1/16") aluminum. I had to drill pilot holes for screws.