Universal Render is stuck applying Cyan

I’ve been trying to learn shaders and It’s going okay, but I have a strange problem that I cannot fix. The shader preview and the materials that use it are Cyan. Even if you mess with the color, it’s just mixing the color with the base cyan limiting its range of actual color. Why I can’t get a base white out of it?

I’m using Universal RP 10.3.2 and Unity 2020.3.0f1

I ended up uninstalling Unity and Hub and Reinstalling Unity 2020.3.0f1.
I started a URP project instead of a 3D an importing it, seems fine now.