Shaded objects no longer layer color

When I switch from wireframe mode to shaded mode all objects change to the material color rather than the layer color which they have always been in the past. What’s going on? How do I get back to the default for shaded mode being layer color?

Version 6
(6.4.18114.15591, 4/24/2018)

Hi David - is Shaded set to defaults? What does the material usage bit look like?


I started a new file and shaded mode is as expected. Don’t know what happened because I haven’t changed anything related to display for a while. Perhaps it was a legacy from opening someone’s posted file.