Is there a way to tell who has consoles open to VMs?
Not that I have found, but if you check open sessions for the entire VC, that may give you a clue.. if you cross that with who has access, it may help narrow the list.
also opening a notepad in the session and typing "who is on this machine" may garner a response . . . .
Also you may open the session twice inadvertently, if you use the "console" tab, and then open a console by right clicking that's 2 consoles open...