Show the Merge Paths shape layer tool some love
The merge path tool for shape layers is inconsistent while on a shape layer with 3d turned on in the C4d renderer. While the Add mode always works, Merge and Intersections sometimes break, and Subtract and Exclude Intersections often break and sometimes (like right now) I can't get to work at all.
I started with type converted to shapes, and when that did't play nice, I built and outlined my type in AI, outlined it, cleaned it up, and brought it in with Overlord. When switching the layer to 3d, all the bowls in the letters filled in, but then using the merge paths only fixes some of the bowls, while not working at all on others. I made sure that I had the paths stacked in the correct orders, and initially figured that it was something related to shape artifacts in the typeface itself, hence cleaning it up in AI.