I searched forums but didn't find anything like this.
As of last night, when I flywing within a map, change maps, or relog I have been having trouble with my buff icons. Aspd, falcon and improve concentration icons disappear at random and reappear at random. I popped an awake, winged, and the icon was gone. I logged and it was back. I changed maps and it remained until the skill duration ran out, and when I recast no new icon appeared.
It's happening on multiple Geffen maps and also clocktower UG on different characters.