Thanks for bringing this to my attention, @gpath.
This issue is recently reported and already closed. And to get this fix, let's disconnect and reconnect your bank account to get you back up and running.
I've checked if there's a new on-going issue about Chase Credit Card bank feeds but there isn't currently one. In the meantime, disconnecting and reconnecting your Chase Credit Card bank account can help us isolate this.
Here's how to disconnect the bank account:
Here's an article for your reference: Disconnect Bank Account.
To reconnect your bank account, here's how:
When the download is complete, go back to the Banking page to review and add your transactions to QuickBooks Online.
I've got you an article for your reference: Connect Bank and Credit Card Accounts.
That's it! Please keep in touch if you have additional questions, or if there's anything else I can do for you.