I've been replaying W101 as Storm, and I've just completed the past version of The Grand Chasm.
However, when I returned, the quest states: "Find Vault Keeper Key". I looked it up, and you're supposed to talk to Belia Windgazer to progress, but there is no quest arrow indicating you to do so, and talking to her otherwise does not work.
In this state, I am unable to continue with the story. Is there something I can do to fix this?