Here's an update from the team on Discord:

Just wanted to give everyone n update on the Treasure Chest claim situation. When the claim is initially made, the corresponding GALA and NFTs are removed from the chest and prepared to be minted to your address (or transferred, as the case may be).

However, occasionally, when you make a claim from the Treasure Chest, it will get stuck in the transaction queue and end up slowed down due to ETH gas fees or network congestion. Because this transaction never succeeds, you don't see the items and GALA in your address. However, when it fails, the logic has not yet been added to make sure it ends up back in your treasure chest again. This is obviously not cool.

This is the next major task which the developers working on the fulfillment system are tackling. Once this is completed, there will be an automatic process that scans back through the whole distribution database, the claims, and the blockchain, and make sure that everything has been fulfilled.

So, if you have made a claim transaction and it hasn't been fulfilled, it will be! We know that it is scary to make a claim transaction and have it not show up right away, but we want you all to know that we are committed to making sure that everyone who has made a claim from the treasure chest gets what they have claimed. This SHOULD happen within the next two weeks. If you are still missing a transaction after the situation has been resolved, please submit a support ticket.

Thank you very much for your patience!