Unity New UI 4.6 disappeared suddenly for web player

I had been using new Unity UI 4.6 for quite a while but suddenly the new UI layer has disappeared for web player Build.?
please help if any one has faced the same problem. instead of a login screen that i designed using new UI i am getting a blank blue screen while it works for standalone version.

According to this thread the issue was solved. I tested with success. Everything is back, guys.

4.6 (b17/20) web builds no longer working !!!

Yes, well today is 4.6 release day and web player projects made with the beta version need to be recompiled in the new releaseā€¦