After updating the NVidia graphics driver to v.552.74+, reflective/mirror materials appear broken and render with black and white lines in VR mode if they are in a level with a Post Process Volume with certain Lumen Reflections settings.
Affects both VR PIE and VR Scouting mode.
This can be reproduced by running Lyra with -emulatestereo (right eye has artifacts in reflections), or follow the original repro steps below:
Actual Result:
Reflective materials are broken
**
Expected Result:
Reflective materials render as expected
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-220474 in the post.
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Component | UE - Platform - XR |
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Affects Versions | 5.5 |
Target Fix | 5.8 |
Created | Jul 29, 2024 |
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Updated | Oct 6, 2025 |