Troubleshoot for the OBB folder.
The "Checking Expansion File" screen in is a common technical hurdle because the game was officially removed from app stores in 2019. Since the game is no longer actively maintained by Rovio, the automated system that downloads necessary game data (the OBB file) often fails to connect to the servers. angry birds epic checking expansion file
The "Checking Expansion File" error in Angry Birds Epic occurs when the game cannot locate the essential (Opaque Binary Blob) data required to run Troubleshoot for the OBB folder
: If you are reinstalling, ensure your progress is backed up via Facebook or Apple ID, as Angry Birds help centers note that local data is lost during uninstalls. angry birds epic checking expansion file