Guild Wars 2

(SPOILER)
I am level 67 Human Thief
Server Gandara EU

When I go the ship there are no undead to clear. Quest text says “Clear out the undead so Tonn can set the charges.”
There are no undead in marked area on the map. I tried killing some, I skipped before this area, but still no success.

Tried few times and result is the same.

It’s been a while but I remember killing 3 risen sharks for that bit.

I don’t know if it matter, but all the tries I skipped the conversation.
Sharks were in the water, but not close to the ship, 3rd and 4th try I killed most of the risen in the water including the sharks. Btw sharks just own you. If you get attacked from more then one you just die.
Later after I hit 70, I tried the event again and it worked. This time I listened to the whole conversation.

I am facing this bug. I killed the sharks but Tonn wont set the charges. It is annoying.

I had the same bug happen to me just now when trying to clear the undead, but I finally saw the last “giant undead shark” which was stuck in the bottom of the ship. I was able to melee him to win.

Hopefully that helps anybody still running into this.

I was stuck at the same point as well. I found this thread and checked the bottom of the ship – lo and behold, a shark stuck inside. Thanks.