I have a mesh with colors assigned per vertex.
If I use a shader like Lambert then I can see the colors perfectly in Maya using Viewport 2.0.
However, when I use an Arnold shader like aiAmbientOcclusion, the colors are not shown in Viewport 2.0 anymore.
If I switch to legacy default viewport or legacy high quality viewport then I can see the colors.
As a side note, I’ll say that in order to see the colors correctly in Arnold, one needs to go through the hassle of creating a aiUserDataColor node. But this is unrelated to my probelm.
I simply want to see the colors in Viewport 2.0 when an Arnold shader is assigned.