I upgraded to the latest BETA of Yosemite on Mac. It seems since then Hearthstone doesn't start anymore. I even uninstalled it and reinstalled it. Same thing: Just a white window that says HearthStone on top with a spinning hourglass thing.
It worked fine in the previous (first) Beta versions of Yosemite. In the seconds it seems it does not. I realize you cannot be responsible when I'm using Beta OS on my MacBook. I just wanted to let you know and also to see if you had any tips? Should I uninstall and maybe delete the folders?