Dragonbane Keep comes up and I can confirm it’s up via both the icon on the world map and wowhead. The world map icon says that there’s 43 minutes left… but everytime I fly into waking shores, the icon disappears and I am unable to actually start the event. I fly to the spot where the obsidian outcasts start at but there’s nothing there. I have unlocked the assaults on this character so it should be showing up…
Still happening. I’ve given up on trying this assault.
The only tool you actually need is a clock. The assault runs at the top of the hour every other hour, so be there a 5 minutes before the hour and you’ll be golden.
Waiting for this bug to be fixed is unlikely to satisfy you.