Guild Wars 2

So we got this puzzle today with the guild.
We got to the part with the broodmother and torches. We failed that event once, and the second time the broodmother (or the big drake) was just invulnerable and not moving.
Perhaps it has something to do with the teleporting (we got teleported out of that room because we failed the event).

The event lasts quite long so our time was up for a third try and failed our mission because of this.

Apologies for double posting, but should i make this thread at the bugg section again perhaps?

Did this puzzle for the first time just now, fail on the first try and succeed on second, never encounter the bug :O

Yes, I’ve seen this bug before. I’m not sure if intentionally failing that part of the puzzle resets the broodmother or not. That might work for now.