Invalid Renderer?

Hi there.

With a lot of googling and trial and error I’ve managed to get the URP working, I’ve created the URP asset, swapped the renderer in Project Settings, upgraded materials, the newly created URP renderer is in the Camera rendering settings and also in the URP asset but…

I have an error and a warning:
Error; Default renderer is missing from the current Pipeline Asset. But if I look in the asset the newly created renderer is there.
Warning; Trying to render SceneCamera with an invalid renderer.

At this point I’m stuck and can’t find any google references for this specific problem. Pretty sure it’s something I’ve messed up, but I have no clue where to click or drag a thing.

Please help! My learning project is currently unusable. Boo!

Thanks.

So I’ve started the project this morning and 2 surprises.
The shader problem has solved itself. So there is an issue somewhere with variables and settings.
And a load of work pre-shader has gone missing, a bunch of particles I created and some other minor changes. I work with Blender a lot so I’m used to saving all the time. The particle systems I created are still in the prefab list, but not attached to the scene objects anymore. Is this a known?