This issue has been resolved with our aggregation team, and accounts should now update normally. Thank you for your patience while we worked to resolve this issue!
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We are aware of issues with Apple Card accounts showing site errors as well as not updating transaction data. Our aggregation team is aware of the issue and are investigating the cause. As soon as we have a resolution for this, we will update this article.
If you have synced accounts, please do not delete them as doing so would permanently remove the historical data. Leave the linked accounts or the setup for Apple Card in the current error state and we will provide further information as it becomes available. Thank you for your patience while we work on this issue!
Additional Note: As Apple Card does not display their transactions on their website, and only have transactions available for .PDF download, we are not currently able to pull transactions from their site. While you will see the balance update, you will not see a transactions list for this card.