I'm lvl 39, I have got the helmet and the map for the quest, but none of the other 3 chests appear for me. Also even though I DO have the deathbrand map it keeps redirecting me to the dead pirate on my map as if I haven't found the map yet (don't really know if thats a problem or not).

Thanks for any help with this.

Try dropping it and picking it up again. or put it on the body leave menu and pick it off.

I tried both of those things already and the nothing changes unfortunately.