When using The Messenger after going flawless the guns glow effect is causing the screen to blow out as it covering so much of the screen duo to the emissive. other trials weapons doesn't have this servere of an issue but it does exist but since the emissive details are much smaller it doesn't cause a full blowout.
This is making it very difficult to play on dark maps as it keeps flickering when you switch weapons or when running as it briefly goes outside the screen.
Maybe resize and/or reposition it to elevate the issue.
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Quit going flawless, problem solved.