Static Mesh displays black splats at render time

Development Rendering
1

I’m using UE5.3 for Archviz, and ending up with these black splats on my building, which is a static mesh. The black splats only show up in some cameras, mostly when closer to the building. All cameras in the level have the same settings and exist inside of a Post Process Volume which they defer to. The black splats ONLY appear when I hit render in the render queue. They do not appear in the viewport.

Any ideas? I’ve Googled and read/watched at least 12 different threads and videos and nothing has resolved this for me yet.

1st image is the rendered look. 2nd image is the viewport.

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250602_Sequence.02431920×1080 168 KB

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image1181×682 58.9 KB

2

Adding a clue:

It seems to happen when I have the High Resolution render settings enabled:

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image700×640 38.5 KB

3

One more clue:

It happens with only half of the contrast (the black appears as dark gray) when I have High-Resolution turned off, but anti-aliasing turned on:

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image697×635 30.8 KB

4

I’m bumping this because I’m still getting the problem in UE 5.6. Does anyone know what causes this?

5

Can you go into Game Overrides and shut off all the LOD0 and cinematic forcing? I wonder if its a LOD issue.