THE APP DOESN'T DOWNLOAD OR UPDATE THE GAME Each game version must be installed separately.
On top of the Install button, confirm which Game Version you want to install: Modern WoW, WoW Classic, or Burning Crusade Classic. This list specifies the minimum number of different patches you need to apply for the Patch 4.0.1 PTR. See Getting on the public test realm for more information. If the icon is missing, click on All Games and select the game from the list. The official patch downloader can be found on the official site for characters who have successfully copied a character.