When adding a Linux x86_64 build (Created on windows 10) to steam, it won't launch. The build will launch fine from the standard Linux application shortcut.

Steps to reproduce. - taken from test case https://qatestrail.hq.unity3d.com/index.php?/tests/view/412117

Precondidtions.
- Steam account and installed steam
- InControl test scene (try https://www.assetstore.unity3d.com/en/#!/content/14695)

Steps
- Create a build on Windows 10, of the InControl Test scene for Linux 86_64.
- Login into an Unbuntu Machine and Launch Steam
- Add InControl Test scene to the steam game library.
- Launch game from library.
NOTICE ISSUE >> Game does not launch