On UWP and WSA platforms, there are three splash screens. The third one is Unity splash screen, which starts at the same time as the first project scene. Expected that project scene should start only after Unity splash screen, like on standalone player or other platforms.

Reproducible on 5.2, 5.3, 5.4.

Repro steps:
1. open "SplashExample.zip";
2. build to UWP or WSA platforms;
3. build and run the project. Observe that game starts as soon as the Unity splash screen starts to play;

Workaround: create dummy loading scene, which starts first scene after 5 seconds.