I have been having this constantly in editor for the last couple weeks. This shows up on the console and the scene view is pitch black, but changing the scene mode, brings the rendering back and the warning is gone - for a bit.
Configuration:
Vulkan/DX12 - HDRP
Unity Version: 6000.21f (all previous previews had the same issue AFAIK).
GPU: 4090 RTX
Windows 11
Anything that forces the refresh of the view, seems to work - changing scene rendering modes, going into play seems to do the trick, still a bit annoying.
I have the same problem but I noticed something. This problem occurs when I change the surface type of the material from opaque to transparent with “recieve fog” enabled.
For now, I was able to prevent the problem by unchecking the Receive Fog checkbox.
I have been having a similar Issue. For me it happened when converting from URP to HDRP. That’s when the error occurred. When I back track to URP the problem goes away. So right now I am going to continue on URP though I upgraded, because I am trying to take advantage of the power of HDRP. I just know imma switch either to an older version of unity 6 or the LTS when it comes out. Hope this gets Resolved GL with your Project!