hey guys. so I'm having problems connecting the head to the neck of the body in maya 2009. i merge the vertex and then notice the edges didn't merge along with it. then I undo everything back to the point the head isn't attached to the body anymore to see what went wrong. i go to edit mesh and clicked on the merge edge tool. i used this to check if everything is ok with the edges and noticed not all the edges are purple where it should be. i repeated this a couple times to check if its just the head but the same thing happens at the neck of the body. some edges are purple and some aren't when they should be.
you guys know how to fix this?