in Call of Duty: Black Ops III is a frustrating interface glitch typically triggered by corrupted custom weapon mods, mismatched attachments, or "fake" blueprints in the Gunsmith. When it occurs, players often find themselves unable to access their weapon customization menus or may experience game freezes when attempting to pause. Common Causes of UI Error 27393
If the error occurs immediately upon pulling up the Barracks or checking game menus on PC, the profile data is likely corrupted. Community discussions in the Black Ops 3 Reddit Community have confirmed that wiping the multiplayer tier sync stops the script loop. Navigate to the Multiplayer menu. Enter your . Select the Fresh Start option in the bottom corner.
This is the golden fix. Steam will compare your local files against the master version and redownload any corrupted UI assets.
