This has been happening to me off and on in Maya 2015 for a while now and I'm wondering if anyone else has encountered it.
When using Viewpoint 2.0, randomly all of my shaders will stop displaying. They'll just be the default grey and no amount of assigning new shaders or adjusting existing ones will fix it.
The weird part is that they display if I use the legacy high quality renderer.
Any thoughts on this one?