Screw modifier creating extra faces I'm using Blender 2.83.5 I have a profile that I'm using with the Screw Modifier.  For some reason it's creating extra faces.  How can I fix this so only one face is created?
Profile Below:

Use Screw Modifier:

Extra faces are create somehow:

If I delete a face another one is behind it.

PS:  This is what I was following
https://youtu.be/R8tXe5oCYXg?t=245
Uploaded blend file
There is an extra vertex on the base shapes: