: Account data can sometimes fail to sync correctly across regions, causing the "Preparing Data" phase to stall or fail with a server error.
If you have ever switched your game language (for example, from your native language to English for competitive callouts), StarCraft II often tries to stream the secondary files dynamically instead of permanently downloading them. Open the . Navigate to the StarCraft II game page. starcraft 2 preparing game data extra quality
Mastering StarCraft 2: Preparing Game Data for Extra Quality & Optimal Performance : Account data can sometimes fail to sync