Posted by: Tech Support Team
Game: Call of Duty: Black Ops III
Platforms: PC (Steam)
There is nothing more frustrating than settling in for a nostalgic zombie run or a multiplayer session in Black Ops 3, only to be slapped with a cryptic numerical error code. If you are seeing UI Error 27393, you are not alone.
While Treyarch has moved on to newer titles, this legacy error still haunts PC players. Here is everything you need to know about what causes Error 27393 and how to get back into the action.
A corrupted config file forces the game to use broken UI settings. ui error 27393 black ops 3
If the error crashes your game instantly upon opening a menu, force the game to render differently.
Overlays are notorious for causing UI Error 27393. They inject code into the game’s interface, which can trigger the crash.
Black Ops 3 defaults to DX11, but sometimes it tries to force DX12 compatibility features, causing UI errors. Posted by: Tech Support Team Game: Call of
Force DX11 via Steam Launch Options:
Black Ops 3’s UI was built for Windows 8.1. Windows 10/11 sometimes breaks it.
Call of Duty: Black Ops 3 remains a fan favorite years after its release, thanks to its Zombies chronicles, fluid multiplayer, and the controversial but beloved Prop Hunt mode. However, like any complex PC title, it is prone to specific, frustrating errors. Among the most notorious is the UI Error 27393. Look for files named shaderX
This cryptic error message typically appears mid-game or upon launch, kicking players back to the desktop. It reads something akin to: “UI Error 27393 – Tried to access an invalid address.”
If you are seeing this error, you are not alone. In this guide, we will break down exactly what UI Error 27393 is, why it happens, and—most importantly—how to fix it permanently.
Black Ops 3 dynamically compiles shaders for your specific GPU. Over time, or after a driver update, this cache becomes corrupted.
Steps:
shaderX.bls or folders named shader_cache.Pro tip: After clearing, launch the game and wait on the main menu for 2-3 minutes before playing. This allows the shaders to rebuild properly.