I'm having a little strange problem. After update Xcode to the seventh version (I suspect that is related with this) I lost all my images on my assets catalog.
The app isn't loading the assets on simulator neither devices, all the images loads fail with the message of the title (my app is almost blank). I've tried removing the catalog and adding a new one, and also inspecting broken references into the storyboard but all that seems to be ok. I don't think the format of the images is the problem because in a near past the app was working well.
I tried a lot of things, clean, removing derived data but nothing work. Any help is really appreciated, I'm really stuck on this.