: Some users report that the error specifically triggers when pressing "Esc." Completing the current mission/chapter without pausing can sometimes "reset" the UI for future levels Steam Community Steam Achievement Manager : A known community fix involves using the Steam Achievement Manager
In many cases, the UI becomes unstable if account levels are set manually using external tools. Community members on Reddit have noted that resetting a Zombies level back to zero or prestige level one can stabilize the interface. ui error 27393 black ops 3
