Hangs on Splash on Device, doesn't when served through XCode

I have an app that run’s perfectly normal when I run the app through Xcode directly onto my device.

However, when I actually put it as a standalone app, it hangs on the splash screen.

Does anyone know what I can do to check what’s wrong? I have no idea why it would work perfect when my device (iPhone) is connected to my computer but not when it’s a standalone app.