Thank you for the feedback, eldal. I tried this, and I think I can work with it. However, it is not ideal. When I download from Chase, it downloads all transactions from both credit cards and designates a new account number, which doesn't match either of the two that are in Quickbooks already. So, to make it work, I am forced to delete the two accounts in Quickbooks and I lose out on the granularity of the two separate accounts (main + employee card).

I am very disappointed at how Quickbooks is handling this. Clearly, many others have this same issue.