HDRP render has black blocks on top, Camera has enabled Stop NaNs.

Unity Engine
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1

HDRP render has black blocks on top unless disabling Volumetric Fog

Players have complained that the background is a black screen. I was able to reproduce this bug, where initially there is a single black square on the screen. As the camera is moved, the black square becomes larger and eventually blocks the entire view.

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8662764--1166517--screen_shot_2.jpg
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see video recording:

Update：
Hope this might be helpful for others:
Looks like if I change the Fog setting, it goes away.
Enable Volumetric Fog(1st check box), then disable it(2nd check box).
In this way, you really disable fog volume.

8662764--1166625--question3.png
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It looks like an HDRP fog bug.

2

HDRP has a setting the rendering debugger window (in Window → Analysis) to visualize NaN pixels. It’s likely coming from some of your content but it’s gonna be hard to figure out which object without that or something like Renderdoc.

3

We have the same issue, enabling and disabling volumetric fog clears it temporarily for users.

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