Without proper permissions, the game cannot write temporary cache files required to switch language assets. Right-click attila.exe , select , go to the Compatibility tab, and check Run this program as an administrator . To help you get this sorted out, let me know:
To restore full immersion—including the cinematic campaign narrations, battlefield commands, and advisor tips—you must manually reintegrate the official English localized assets back into the game's file directory. Technical Specifications of the English Language Pack total+war+attila+english+language+files+codex+exclusive
The dramatic speeches, advisor voices, and unit callouts are in English. Without proper permissions, the game cannot write temporary