This is happening in example projects too. Even in the simple FPP example project, there is 3 seconds of black screen after splash. How Epic Games cannot notice this kind of obvious problem?
I haven’t played around with it for more than a couple minutes after getting it to work just now, but if you are running a source version of the engine, you can try to change the length of the timer:
I tried looking for something for Android, but didn’t have any luck. Not sure if someone else might be able to find something. I don’t want to go back to an older version of the engine.
You can circumvent this issue by putting in a loading screen video. Even a video of a still screen will work since it will show something instead of being black for 5-10 seconds. You can also use level streaming but that’s more advanced.