Much like my other report about the RenderTexture, this is an issue that only occurs when I do a build on 2022.3.6f1. its absolutely fine with the in-editor play mode and 2021.3 (builds and editor). Pretty standard Rendering to a "material override" on the _EmissiveColorMap. Looks perfect in the editor, in a build it shows a very stranger small image that looks as if its miles away in the distance. Sometimes seems to follow your view. Unclear as to what it is actually showing.