Texture has color, but material is completely grey scale. Why?

When I plug a fully colored texture into base color, it turns white. This happens for every texture like this. However, if I throw the normal map in there, its color shows up. What could possibly be going on here? Res is 4096x for that one, and 2048x for the normal. Thanks for any help, this is happening to all of my custom materials.

Look at the texture in the bottom left vs the preview in the TextureSample. It’s very brown and almost black in some areas, while the other comes out nearly day glow white. In this screenshot new Rock_wall_01 is clearly brown, but the materials M_Cave_wall, its instance, and even a blank material with JUST the brown base color all come out colorless. No idea why.

I’ve aligned all of my naming conventions. T_Cave_Wall and M_Cave wall etc. Selecting sRGB for the texture seems to drain all of the color from it directly. In my first post, you can see the Texture Sample has color, but the material does not. Now, as shown in my new screenshot, with sRGB and “Color” the texture itself has gone from brown to white. I can force the color with a 3vector and Multiply node, but that workaround is hardly useful on anything that’s not one color. I’m at a loss.