Subdivision Modifier w. Skin Modifier makes flat edges/creases

I am new to blender 2.8, and I’m bumping into a problem that I didn’t have in 2.7. When I use the skin modifier and the subdivision surface modifier on the same object (containing only one vertice), It makes the top of the object flat. I have a video file I could upload along with this post to show exactly what I did, but Blender Artists doesn’t let new users upload files, which I totally understand.