I posted the same issue when we first got ours as that was one of our first indications the designer hadn't stayed in one
Ours stops the sliding doors sometimes, how far back does your rod need to move ???
Really guessing at why they do that, but it seems like at least your and my 38gk has that - maybe that's the only place they can support the rod ends?
What about this:
reverse the center support and, if need be, bend it toward the back,
then figure out if the new location has support behind the side walls to hold the rod ends...
if not, cut and stain a couple of 1x4's to fit between the floor and the rod ends and attach them to the outside walls for support.