UITableViewCell Separator Not Resizing on Rotate

Ok, I am completely lost right now..

I have completed my app and am about to distribute it via ad-hoc for beta testing, but there is just 1 thing that is really bothering me in 1 screen.

In 1 UITableViewController, the cell separator does NOT resize to fill the screen when rotated to Landscape (it stays at the portrait width of 240). I use table views in all of my views and they all work perfect, except for just one. I am using storyboard for my layout and I think I am just missing something very small and that for some reason I am not seeing it.

It does work correctly on iOS 7, it is only broken on 6.1.

Can anyone please recommend a fix?

FWIW, I do not have any code in the view controller that deals with drawing based on orientation.

 

I am using Auto-Layout....I am chalking it up to be being Xcode 5. In a branch, it works fine in Xcode 4. Once the final Xcoode 5 comes out, I'll take another look at it....

FWIW, my table is pinned at 0 for the leading, top, trailing, and bottom. And no, I am not doing anything at all with the cell separator.