I'm glad to see others are having the same problem with this task.
I have leveled up 3 times with 2 different weapons for this task. When I originally started on this task several days ago, I did have a ray of light to the island, but I thought I would sink some ships on my way. By the time I got to the island the ray of light was gone, and no entrails were found.
I hope the problem gets fixed soon, I'm getting tired of killing crabs.
