This quest will not complete. After gathering the items needed from the 3 islands and going back to Billy McKidd, he just spouts off about some irrelevant stuff instead of completing the quest. See attached.
Yeah, I get it, but I don't have quests anymore... They are all stuck like this one. I saw some people finishing this quest and It's weird that it is not working for us..
@Element: I saw you posted about this issue in the megathread.
I haven't done this quest personally, but I've heard others say Will Turner accepts the quest. Hopefully the devs can get it rightfully set back to Billy.