Guild Wars 2

Assault Foulbear Kraal in the Fields of Ruin is a rewarding event chain with 3 group events, at least 4 champions and a guaranteed gold. However, I find it is often stuck for reasons that elude me:
We hold both Bloodgorge Watch and Sapper’s Delve.
Finley is standing at the south bridge alone.
That Ash Legion Charr lady is standing at the north gate alone.

What causes it to get stuck when this happens? How do I fix it? Note, I have usually just liberated Sapper’s Delve and/or Bloodgorge when this happens. It is not that the event chain finished and is waiting to reset.

Some bugs in this event chain. From the wiki:
Maybri Shadowstalker will get stuck outside the northern entrance to Hunter’s Gorge and block this event from starting if Legionnaire Slashclaw or the other Charr that travel with her are killed on their way to Foulbear Kraal.
Sometimes the Charr and Human NPCs will make it to Hunter’s Gorge but get stuck before they’re able to start this event, blocking progression.