I've only noticed it recently, so might be bug in 4.0.7577.4388 version (32bit).
For Lync contact groups:
It shows mixed up green (available) and red (in meeting, conf call etc) contacts at the top, followed by yellow (away) and offline.
It used to be green only at the top definitely.
For Distribution Groups on Lync contact list:
Sort by availability is totally ignored.
Contacts are always sorted by display name, unless I switch for a moment to indeed sort by display name and back to sort by availability for EXPANDED Distribution Group.
Then it's "fixed" to the same state as described for Lync contact groups above.
Very annoying.
I've get rid of %localappdata%\Microsoft\Communicator\sip_mySIPaddress folder to no resolution.
For Lync contact groups:
It shows mixed up green (available) and red (in meeting, conf call etc) contacts at the top, followed by yellow (away) and offline.
It used to be green only at the top definitely.
For Distribution Groups on Lync contact list:
Sort by availability is totally ignored.
Contacts are always sorted by display name, unless I switch for a moment to indeed sort by display name and back to sort by availability for EXPANDED Distribution Group.
Then it's "fixed" to the same state as described for Lync contact groups above.
Very annoying.
I've get rid of %localappdata%\Microsoft\Communicator\sip_mySIPaddress folder to no resolution.