Issue with Sewer Trial
Which timer were you looking at?
There is a timer for the mission, and if that fails before you defeat the head, then you fail the mission.
There might also be a Timer in the top right corner as a challenge timer for the TF. Even once you kill the head, that timer will still go down and you may get the message saying the Challenge Failed, but it should have no bearing on your actual TF or the rewards.
I'm not sure if any of the Kraken or mobs are required or not... but if you actually defeated the head, and the mission itself still failed, then it is certainly a bug.
You need to clear rikti and krakens after you defeated hydra if any left
From what I recall, you had to defeat the head and the rikti mobs surrounding him, so if there were a few that had run away it could have caused the timer to keep counting down.
Usually it the teleporters that run off, but it can be almost any mob type.
You do have to kill some rikti, it would be nice if the objectives listed this.
Yep, the Rikti spawn that pops near the end has to be eliminated, as well, I do believe. That can be an issue if you have one of those that TP around, and you miss seeing them off to the side, or even above you, mixed with the others in the shaft.
In that case, everyone needs to move off to one side out of sight, so it will TP back to you.
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Ran the Sewer Trial tonight and after finally getting organized and knowing what to do we defeated the Hydra with 21 seconds left. The clock continued to run and hit zero with a Failed Mission. Did we miss something?
We petitioned but I wanted to make sure that's all we had to do.