Textures not showing on material in environment in Real Engine 5.0.3

I am working through the Unreal Engine 5 Beginner Tutorial - UE5 Starter Course 2022
I have made it all the way to the Trees Section.
I have added the Black Alder MegaMeshes from the Market to my envirinement. I put them into my scene and they looked fine.
I followed all of the instructions and was able to set all the Trees to Nanite.
Sometime after that I noticed that the textures were not showing in the environment.
I also noticed that they do not show up in the “Geometry” folder for the meshes.
I updated the Windows 10 OS and updated the driver for AMD Radeon™ RX 5600 XT.
Still there is no change.
I am not able to find the Material Graph for these Meshes to see what may be broken.
I appreciate any suggestions to fix this.