UE5 MRQ Rendering resolution exceeds 8K,problems will occur on the left and right sides of the picture.

Development Rendering
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1

ScreenShot_2025-12-11_194932_427
ScreenShot_2025-12-11_194932_4272520×1908 273 KB

ScreenShot_2025-12-11_195230_647
ScreenShot_2025-12-11_195230_6471920×378 183 KB

ScreenShot_2025-12-11_195154_208
ScreenShot_2025-12-11_195154_2081920×375 186 KB

UE5.5。

When the rendering resolution exceeds 8K, problems will occur on the left and right sides of the picture.

It is known that there is no problem with disabling GLOBAL ILLUMInation, but when using Lumen with a resolution exceeding 8K, there will be issues

2

Yeah this was a bug in 5.5. Can you try it in 5.6?

4

Due to project reasons, we are unable to upgrade the version.

Is there any other solution?？

5

That makes sense, lumen was designed for real-time applications primarily and I don’t think a size bigger than 8K was a considered use case. If you’re rendering this for offline use, I’d just use the path-tracer working in tiles, it can handle things like this pretty well.