I wanted to do all achievements that I did not do in the past, and I ran into a problem in Long Live the Lich. The Gandaran Service Medal (do events in Kourna) achi needs you to complete 3 events where you need to destroy 3 cannons to get cannoneer's medals and ribbons and such. They are supposed to happen between meta events when the "reconfigure the cannons" events are not active.
The thing is, I waited HOURS and the event never spawned. Yet I do not see any note anywhere (wiki, or Dulffy) that there is a prerequisite for these events. They are just... suppoed to spawn between metas. I waited 3 metas and nothing.
Should I post this as a bug? Anyone know perhaps if there is a prerequisite for the event?