I have an active Game Pass Ultimate subscription on my Xbox console. I am playing Diablo 4 on my console and have purchased the latest expansion pack. The expansion is active and working fine on my console. However, when I try to play Diablo 4 via the Xbox app on my PC, I log into my account, and my characters, seasonal progress, and purchased cosmetics are visible, but the expansion pack appears as not purchased.
I have verified that my Battle.net and Xbox accounts are linked correctly and double-checked my account settings. I kindly request your assistance in resolving this issue.