I updated my Unity Webplayer to Latest version downloaded from here:
I also tried to downgrade Webplayer to a previous version but still everytime I try to Load a WebPlayer Build from Unity 4.6.1p2 I get the following Error (See Screenshot Below)
Other WebPlayer Builds I have from Previous versions of Unity works OK, except for Unity 4.6.1p2 Builds.
Any Workarounds, or Patch Updates coming to Fix this?
4.6.1p2 is newer than the released 4.6.1 web player. The patch releases cannot be used to build web players. I did explain this when we released the first patch, see my initial post here:
Thanks! 
Holy crap… got the exact same issue. Patch releases can’t be used to build Webplayer? Not good. Project can’t be downgraded and neither be finished because of non working webbuild. Hopefully 4.6.2 is appearing soon 
Patch releases can be used to build web players. The web player that is installed with the patch version of Unity can be used to play the content. However, end users will only get the most recent, QAed web player, so for 4.6.1p4, end users will get 4.6.1 from our website, which will not play content created with a newer version. This was documented (by me) when we launched the patch release program.