Game unable to launch and editor freezes on rebuild

I was trying to do some work on my project when I encountered a bug (I like to play the game a couple times before I start working on it for the day). The repro is surprisingly simple.

  1. Open Editor
  2. Load project
  3. Click build and launch
  4. Observe that nothing occurs when build finishes
  5. Observer there are no logs or console output

So I figured I messed up somewhere and did rebuild and launch to see if that fixed it. It would then build to around 31% then hang and become unresponsive.

To test and see if I messed up something in my project, I created a new project from one of the tutorials. The same problem occurred.

I was running on Windows 10 and the latest version.

Unzipping an older version over the top of the latest version seems to have resolved the issue…for now.