Hello,
I'm German so sorry for the Google English ;-)
I have the problem that in my contact list my cell phone contacts on which TeamViewer and Teamviewer Quicksuport is installed shows that these contacts are "unknown".
Although these blue when I turn on the QuickSUport on the phone and you can also connect to them but on my other phones on which I have installed the whole earlier it was always so the contacts not as "unknown" but as "Offline" are displayed. Or not be displayed. Usually these are logged out when they are offline in the contact list.
Why is not that the case with the new phones anymore?