Anyone else having issue with these lately? I noticed that the app will miss any comment notifications which aren't responses to things I've written on my wall. The alternatives do better at this, but lack crucial functionality in other respects. (I've done all the usual stuff w/Safe Center, Settings, etc. to ensure I get notifications, so that's definitely not the cause). Are there any work-arounds, or I have to wait for FB to get its act together?