Hi there Captains !
We get quite often messages, that players do not gain the materials or gems from the captain´s chest, so we would like to address the issue here.
When you finish a Captain´s Task, you will gain a chest, similiar to the ones you gain from wrecks. Once you open it, the materials are automatically added, wihtout the need to click on Claim. This happens in the background, sometimes even before the Pop up showing the rewards will come up.
Take a look here. The tasks have been completed, and we are ready to claim them. Take note of the Gems in the upper right corner of the screen:
Now we click on the chest, and the pop up appeared. Now take a look at the gems, as you can see, they have already been added , even before clicking the "claim" button.
This might then cause the impression that none of materials have been added.
You can do the same too, simply take a screenshot before you open the finished task list, and then take a screenshot after you have claimed them, to see the rewards.
Also, the same applies to the Wrecks and all other chests, as they are mechanically the same.
I hope this helps you out !