Screen goes blank when users update to new graphics 2.0 app?

hey guys,

i recently updated one of my apps to graphics 2.0 and i’ve gotten a few bug reports since it was released.

i tested it on my ipad3 and iphone 4, both with ios7, and it runs fine (friends have also tested ipad 1 and iphone 5s, runs fine). however, ive gotten a couple bug reports where when the app downloads its update, it boots up to a black screen.

one of my friends was able to get around the error by uninstalling and reinstalling the app, but that’s really not an ideal solution to post up in the app description. i’d prefer it work out of the box!

has anyone else encountered this error? any suggestions? i am at a loss as to what it could be. my only thought is maybe it’s not compatible with ios 6, but i don’t have any ios6 devices to test on…