I didn't know about the small conical angle on that face, but you can put that in.
I understand those surfaces slide on each other. When I made the geometry changes, I only paid attention to the mesh, I didn't pay attention to the contacts. ANSYS automatically makes all those contacts, those are not coming from me. Most of those can be deleted and what you want carefully created. There is an option in Workbench to turn off the automatic creation of contacts. That is my preferred setting, but I haven't configured this version with that setting yet.