I have some possibly related problems... maybe something worse. I'll just list the symptoms:





1. On my iPhone 5 remote app I see my Macbook library 4 times, all of my Apple TVs (1st gen, 2nd gen, and 3rd gen), but my iMac does not show.





2. On my iPad Air remote app, only my 1st gen Apple TV which does not use Home Sharing shows.





3. On my 3rd gen AppleTV, I can see my Macbook 3 times, no iMac.





4. On my 2nd gen AppleTV, I can see my Macbook 4 times, no iMac.





5. On my 1st gen AppleTV I can see the content on my iMac (the library with which it is synced).





6. On my iMac, I can see and Airplay to all of my Apple TVs and my Airport Express.





7. On my Macbook, I can see and Airplay to all of my AppleTVs.





So the biggest two issues are with the remote app seeing my libraries properly, and with the 2nd and 3rd gen AppleTVs seeing my libraries properly. The iMac doesn't show up at all. FYI, I have a mid 2011 iMac, and a late 2012 Macbook Air. I have signed completely out of HomeSharing on all of the aforementioned devices, deleted the remote app on the iOS devices, rebooted, re-setup, and reached the exact same results. My iPhone 5 and AppleTVs all see 3 copies of my Macbook library, and none of them see my iMac. My iPad sees nothing except my 1st gen AppleTV which is is directly linked to, not through Home Sharing.





All of this worked properly yesterday when Mavericks was on both of my Macs.