I was loading a scene from a previous engine version (think 4.12) wich contains materials with scene color nodes. When I open a level everything is fine. the materials look as expected. But when I move an object that has one of those materials assigned they turn black. So I created a new material, set it to translucent and added a scene color node to the diffuse channel. It also turns black. I tried the same in 4.14 and there it works as expected. Am I missing something or is this a bug ?