See attached factory file. If I slice each solid seperately there are no issues so I don't think it's a problem with the stl's. However if you look at the preview of the dual extruder print (both solids printed), you'll notice that the "yoke" gets one layer filled from the "white" extruder on the second layer. You can see this if you watch the preview layer by layer from the beginning. (Second layer is the problem so you won't have to wait long, or drag the slider). Helps if you set coloring to "active toolhead" to see it clearly.
What is causing this?
