Quixel Mixer not loading base layer textures when downloading 3D asset - ideas?

Hi, following tutorial here:

When I follow along and download a 3D asset from Quixel, the mixer shows while loading the asset that it is importing maps. But in the layer tab, no maps are loaded.

In viewport I see the asset, but seems the mixer is not doing the extra needed step of adding those maps as a base layer from which to work. Any idea why this might be the case?

thanks!