I've noticed it too. I have a open ticket with support and awaiting a answer. Have you experienced any issues? All my users with the Chrome extn work flawlessly but windows client keep's disconnecting randomly and the only difference I can see is these 2 IPs per user.
I know the 127.0.0.1 is from the tunnel but i don't understand why the public IP is showing when it's using the tunnel.
The Chrome Extn doesn't show 2 IPs just the 127.0.0.1 one.
Let me know if you figured out a answer.