Nanite import from Bridge is wrong. Shiny playdough. Help?

[dnwalkup (Drew)]

Rock materials from Bridge are all glossy

Find the channel-packed texture (labeled ARD, ORD, AR, etc.). Open it. In the settings on the right, look for COMPRESSION. Uncheck “Compress without Alpha”. Change the “Compression Settings” dropdown to “Masks (no sRGB)”. Problem solved