Every time I try to launch from the Unreal editor, It says that launch is successful. My screen goes black and the it goes back to the android home screen.
Sorry for the delay in response. Here is a link of our currently supported devices, make sure your device is on the list: https://docs.unrealengine.com/latest/INT/Platforms/Android/DeviceCompatibility/index.html
If you are using a supported device and still having trouble, take a look at our documentation on Launching/Packaging for Android: Launching Unreal Engine Projects on Devices | Unreal Engine Documentation
Let me know if you still have any issues afterwards!
Thank you for your report. We were not able to investigate this on the engine version you reported, but there have been many version changes to UE4 since this question was first posted. With a new version of the Engine comes new fixes and it is possible that this issue has changed or may no longer occur. Due to timetable of when this issue was first posted, we are marking this post as resolved for tracking purposes. If you are still experiencing the issue you reported in the current engine version, then please respond to this message with additional information and we will investigate as soon as possible. If you are experiencing a similar, but different issue at this time, could you please submit a new report for it.