Details
Description
If a CustomMaterial or Effect is defined in the same document as the View3D, the effect or material doesn't always show properly on form editor and 3D edit views. Since a material can be made to show up sometimes by adding and removing another model, and you also get "ShaderInfo is not valid!" warnings for materials on trace, so it's probably an issue of updateSpatialNode getting called too early for the material.
Running the project in preview shows everything correctly.