Thanks so much for the replies.
The Alpha is coming in fine, its the RGB channels that are not useable.
I can’t get them accessible in my materials. Even something as simple as using the Red channel for the Base color or as a mult for a constant…no worky for me.
FYI the image I posted has Red Green and Blue corners as well as the Alpha corner.
Can anyone get that data usably into a material?
You are the best!