With the latest updates, I have gone through an app and stripped it out to
just the single @1x resolution and let Livecode do the work to scale it up for
the iPhone 5. This works perfectly, with all the images etc all appearing in
the right places.
However when I test the same on an iPhone
Found the issue (I think).
Everything scales correctly for the iPhone 6, until you add a splash screen
image.
After that it shows the better splash, then flashes and shows the iPhone 5
splash and proceeds to load the app at iPhone 5 screen resolution.
Ive posted a report on the bug system