Risk of being in the Beta. After Beta 12 with SU12 being the only SU until August, I opted out. Glad I dodged this potential problem. Be glad it took 3 hours. Typically takes me half a day. Pro tip, once you have your Official folder downloaded, if space allows, copy it into a safe location. If this happens again just redownload like 1-2% of the game, close the download manager, copy over saved Official folder. Whala, games runs without needing to redownload everything.