Windows 10, Core i5-6500, GeForce GTX 1050Ti
Broken: 2.79b f4dc9f9d68b
Short description of error
Rendering Sapling Tree (possibly other curves, didn't test) with any other objects on Scene, even Mesh of tree, causes rendering standard Diffuse shader in place of tree shader. When on another layer - renders fine, joining two Visible Layers (one with curve trees and one with the rest) makes trees white again. Rendered preview works ok, but render not.
Exact steps for others to reproduce the error
Click Render button with trees layer selected, then with both trees and leaves with meshes.