Edges won't join / UV unwrap issue Blender 2.8 Started unwrapping my model, and ran into a couple issues. I think i found problem, but could use some help fixing it.

The unwrap is extremely warped in various spots of the mesh. While attempting to troubleshoot the issue I found edges are not properly connected to each other in between extrusions(you'll see what I mean when opening the file). I attempted to join those edges with no luck. It seems there is something I'm missing. Problem area is marked in blue circle.
You may find that you get better results when UV unwrapping your model if you use the Conformal method.