After clicking on the box of bombs aboard ship I cannot find the zone or special ability button to blow up the ship. Watched a video and I see what the button is supposed to look like. Thought it might be because I did not complete the bonus objective but the button still did not appear after doing that. Thought it might be because I did not clear the dudes in front of the ship but that made no difference. Thought it might be because I was using bartender4 so I disabled it and just went with the Blizzard UI but still no button. In between each attempt I dropped the quest and ran back to the ship after getting quest again. (p.s. The button to wear the pirate hat earlier in Nazmir appeared just fine.) On my character called Gatrox, a druid.
Update: Tried same quest on another character. This time the button appeared (using Bartender4) but only when I was standing in a certain position directly in front of the ship’s ramp. (Or, the button simply started working properly?) If it is the former it certainly is not intuitive that you have to stand in one location for the button to appear.