As the title says, when using the new SRP Flares, they seem to be completely disabled when MSAA is enabled. I’m not sure if this is a “feature” or a bug, but it’s very disappointing that the new flares (which I love otherwise) can’t be used with MSAA.
I believe that is a bug that we currently have with RenderGraph + MSAA with the Lens Flares (SRP). I discovered the same myself yesterday. Are you on Unity 6?
Could you for a moment see if it works if you enable “Compatibility Mode (RenderGraph disabled)” in the Graphics Project Settings: