By Bogdan Coroi
Emitters applied per geometry faces used to give bad results, so now MXCL tries to prevent that by giving you that error. When using emitters, apply the material per object, not per face.
By giacob
ok thanks

On support they tell me that the case was created […]

Part of this is my fault, I know. I accidentally […]

Hey J, Yes, the assistants have not been added ye[…]

Texture/finish lost in render.