Jade Quarry server Straits of Devastation event bug
I would be more specific as to what part of the chain is bugged, but I am not sure. All that I can say is that the defend lone of and conservatory escort quest seem to be where the event chain stops, as these quests continually loop but never progress to anything else.
If you let Lone Post fail and be taken by the risen..when you recapture it the South invasion forces should show up again. THe problem is getting all those people questing there to lose the point.