Unable to open standalone builds.

Environment:

Windows 10, Mac OS 10.12
Unity 2018.1.0a6

Steps to reproduce:
1. Launch Unity.
2. Create any scene.
3. Go to File -> Build Settings.
4. Select 'Add Open Scenes' from Build settings panel.
5. Select Build'.
6. Run the .exe file and observe that " Build Has Stopped working" error appears and the user fails to run the build.

Additional Note : Clicking on 'Debug' button on the error panel leads to system freeze.

License type: Free