Ui Error 27393 Black Ops 3

This is a niche but powerful fix. UI Error 27393 is infamous for triggering when you equip certain DLC reticles (like the “Optic 3x” or “Thermal” variants) or animated camos. The UI engine fails to render them.

How to fix without launching the game:

Alternatively, launch the game in Safe Mode (Steam will prompt you after a crash). Safe Mode resets all cosmetic attachments to default. ui error 27393 black ops 3

Corrupted game files can cause the UI module to fail when trying to handshake with the server.

Black Ops 3 defaults to DX11, but sometimes it tries to force DX12 compatibility features, causing UI errors. This is a niche but powerful fix

Force DX11 via Steam Launch Options:

This is the #1 fix. It resets all your UI configurations without reinstalling the game. Alternatively, launch the game in Safe Mode (Steam

Through community testing and data mining, the consensus points to corrupted or conflicting user data. Specifically, Error 27393 occurs when the game attempts to render a UI element that references a file that no longer exists or has been corrupted. This often happens after:

If verification didn't work, the issue is likely in your profile data, not the game install.