Landscape material turns default gray despite shared assets

So, I made a huge landscape material a while back whit 4x4 texture atlases and 5 maps for each material layer within it. It always worked great but now that the shared assets feature have been released as of 4.6 I figured I might as well dismantle my atlases and rid myself of some instructions by just using shared assets instead.
However, as soon I try this, landscape components turn default gray checker material like it used to when too many texture samples were used.

Any idea what I might be doing wrong? All textures are set to Shared: Wrap

For some reason, when I unplug roughness the problem goes away. I can’t use material layers with roughness anymore. Any ideas?

Can you show me a screenshot of your material? Additionally, does this occur in a clean project with no additional content?

Hi, I managed to solve it, one of my texture samples was set to the wrong sampler type and I didn’t get an error about it, which is weird.