Hi. I've combined two meshes into one using Mesh, Combine and then joined them using the Append to Polygon Tool and merging some vertices. Then I used the Cut tool on another part of the mesh. When I did, the polygons I created using Append to Polygon became transparent. When I delete them and attempt to recreate them using Append to Polygon again, they are created as transparent faces. \r\n\r\nThanks.