If you are encountering this error, try the following solutions based on your specific situation: 1. Reset Modified Levels
Some advanced fixes involve using a blueprint lobby glitch to access and delete the "invisible" or corrupted weapon mod causing the interface conflict. 3. Standard PC Optimization ui error 27393 black ops 3
Since the error is "UI" based, missing or corrupt core assets are the prime suspect. If you are encountering this error, try the