Just got the Bug report. Can you go to http://unity3d.com/webplayer and make sure your version is 4.6.3f1 or higher. If it is let me know so I can get some more information.
We are currently looking at yet another new bug related to updates not registering correctly after the latest update. This one may be related! Try clearing your browser cache and see if that clears it up! Sorry for the inconvenience!
Should be fixed. There was a bug that broke the Fuse All button if you had 0 T1 gems.