Completed boss battle, and didnt count????

[JeffreyHookgrin]

You don't have to be the crew captain, you don't have to drive, you don't even have to be the one to start it, but who ever starts it must use the button that appears in the journal after you complete the quest. If a pirate that has completed it already uses Lookout to start the battle, it won't count. If several pirates who need to Liberate the Pearl go together, they will all get credit as long as it gets started from someone's journal.

The boss battle is very glitchy, it is possible to complete the battle but not get credit. Just consider that as a practice run and go again!