Black Screen after Windows Build with Unity 2018.2.0f2 HDR

Hi there, this is my first request on this side, so i hope this is the right place for it.

I have Trouble Building a HD Renderpipeline Project with Unity 2018. After i build for Windows, the debug message says it was completed with "Succeeded" and no error Messages occur.
But if i start the build afterwards with my created .exe file, all i get is the Unity intro logo and a complete black screen.

The real funny Thing is, i made a function to lock the mouse Cursor at the middle of the Gamescreen. That function is still working, despite the black screen. So i asume all my logic is working, but i only see black.

I did not find anything About this Problem related to Windows builds, i hope someone can help me.

 

Solved it myself. Just reimported the whole Project and Building worked again.