opened an old model to test different materials but I do not know why the poster color of the layer remains? On the image you can see that two elements are without color, I have recreated a new volume and surface and there are no problems.
Hello - as the file opens the shaded objects have individually assigned display modes (
SetObjectDisplayMode) - to let them use the current viewport mode run that command again and choose ‘UseView’.
yeesssssss this is the solution ^^
thanks you Pascal