5.5.0b9 with facebook gameroom support issue

Curious issue with gameroom build target and 5.5.0b9

As you see in the picture below it asks for the Windows build target (that is included in the editor, so it can't be downloaded anymore), but if i remove the facebook target the Windows build works again.
The bad is that I can't build any gameroom game pack with no WinBuild support.

 

I have downloaded 5.5.0b9 last week and i got the same error. Yesterday i have downloaded again frome Facebook and now it´s okay.

 

LOL, for me was the opposite thing. Downloaded a week ago, all ok. Redownloaded yesterday, the apocalipse!
I suppose I should retry again.

 

That´s really strange!
I created a scene, only a cube. After "Build and Run" first Windows reports a crash, but at last the app starts. Then i uploaded the app to Facebook. But now i don´t know how to start. Think i have much to learn and to test!

 

Nope... reredownloaded and clean installed, same issue. It's really frustrating.

 

Lol, I tried to file a bug using the editor menu... and it crashes with a dll not foud error.

 

Ok, I believe I found a workaround.
You must install tha latest non-beta Unity (4.4.2f2) and THEN install 5.5.0b9 (with facebook) as well.
I fiigured out this because latest time I've seen the beta working was befare I uninstalled the 4.4.2.
I suppose the beta is missing of some dlls.