Update coming but a lot of this has been fixed in windows 10 creator update
But the other issue where it tries to use the vpn username for all credentials after connecting isnt fixed.
no matter which vpn you choose to connect to from the task bar you have to choose it again from the windows 10 list of vpn connections.
I also find I have to pick another one and then repick the one I want to get the Connect or Disconnect options.
However this cmd file will log in and create the connection by just running it from a command prompt, it saves the username and password which could be a bit of a security issue.
rasdial "name_of_vpn Connection" username password
this one should disconnect it
rasdial "name_of_vpn Connection" /DISCONNECT