The Fortune Island DLC

Hey my brother recently bought the expansion pass today and my Xbox is a home Xbox and my account is linked to it. Sadly though it let me play the dlc one time. Then it tells me I have to buy it. My brother can still play it. We have the same Xbox but different accounts. Do I have to buy it again or Can this be fixed I have progress on the island and was really excited to play it. Does someone have the answer I really hope so.

The console needs to be set as his home console for you to have access to dlc while it isnt logged in with his account…applies to most xbone games
So set the console as his HOME console as well as setting as your HOME console and you will access to his dlc