I could actually fix it in the “ScreenLighting” shadersubgraph:
Search the connection between “Baked GI” (Out 3) → “Multiply” (A3) and delete it.
Hit save.
Reconnect the node as it was before.
Hit save.
→ The shader is displayed correctly in my scene.
hmm, show how we just need to disconnect the connection from Baked GI to the other, close the graph, open it again, and reconnect again :/ It doesn't log the error anymore when hit save.
I tried this sample project as well, and tried it on 2022.3.30f1 as it’s available, and i also had this problem upon loading in the project.
But after tinkering around, and trying to figure out how to fix it, i found the solution by going to the screen lighting node, and adding the object node to put it on to the Baked GI Node inside the screen lighting.
The node with problems above is the “Screen lighting” one inside the screen graph shadergraph, double click the node with a red exclamation mark.
The solution i found, though it’s unclear if it’s a sure fix it did fix it for me as the shaders didn’t dissappear like before.
Edit : haven’t found the fix for the others, but this one made the sample show the somewhat intended look.
I want to comment that this did fix the Unity 6 preview error as well. Not sure how this works, I have a LOT to learn about shaders still, but following this quick change worked great.
Here we are a couple of weeks later, and this is still not fixed? I just did a fresh install of 2022.3.28f1, set up a new project with Universal 3D Sample. Same errors appearing.
This is also occurring in a brand new/fresh URP project with Unity 2022.3.27. Same exact error.
– JamesArndt