Ever since the patch that added the Ironclaw Munitions Factory, my friend and guild lists have had a very bad bug.

All friends and guildies who go to the "loading" icon get stuck on the loading as their location, making it impossible to tell where they are or join them. The icon fixes itself next time they change depths, but it's very annoying.

The bug in action: http://i.imgur.com/gRG7m.png