Ahoy! :h-smile: i had this same problem...i thought it was fixed in the test launch because i finally got them. I found a rock crab right at the bottom of the Misty Mire bridge in Tortuga...there is a rock at the bottom and there appears the Rock crab. Got 2 pearls from the first 2 crabs.....i went back to get the 15 entrails soon after and got em all from that 1 crab! Hope that helps :rip:

Doc Grog Crab Quest bug
 

Many Thanks. I found the two engraved pearls. Now I am starting to crew nill. I thought I would never finish that quest, well with the little help I recieved from the on-line help and the bug report I sent in. :h-smile:

i'm having the same problem matey.

For the 2 ROCK CRABS for Doc Grog, you have to go to the Misty Mire on tortuga. Kill the rock crabs there. That is the way to concinue on with the quest.
I also thought it was a bug at the time, but someone told me what to do. Hope this helps!
Good Luck questing! :witch:

Thanks. I did find one in Tortuga, in the swamp. I really had to search every nook and cranny of that place too. But luckily it attacked me!?
And wouldn't you know there's plenty more things to fetch for old Doc Grog after you finish that. Groan.