My Mac Mini Server is brand new - also has Apple Care - so I suspect I can get all the support I want from Apple - but opening a ticket can be time consuming when they start contacting you. It appears to be a bug more than anything so I thought that opening a bug report (which I have not done many of) would be quicker and simply alert Apple to the problem - but they have not responded or acknowledged the bug report - and I thought this was odd - so I added a comment to the bug report (yesterday) asking if anybody was looking into it. Still no reponse.
Make sure you click the "I have this question/problem too" link. Somehow that increases the chance of Apple being alerted to it - as I am pretty sure that Apple does not regularly monitor this forum.