HI @kstockman 

1. Are you using corporate cards in association with projects? Or just expenses?

Here is the help on Expense receipts with corporate cards. 

https://help.acumatica.com/(W(3))/Help?ScreenId=ShowWiki&pageid=09ffefec-2224-41b2-8bf7-cc2231f5bd65

This may be helpful also:

Notes on the Matching Process

There are the following limitations of the matching process:

• If a user matches a bank transaction to an expense receipt in a different currency with the amount within the amount difference threshold, releases the corresponding claim, and the cash transaction is posted, and then the user unmatches the bank transaction from the expense receipt, the cash transaction will not appear as a candidate for matching on the Process Bank Transactions (CA306000) form because the amounts differ.
• If a cash transaction originates from an expense claim, the cash transaction date in the system equals the expense claim date. There can be a significant delay between the date of the bank statement transaction and the date of the cash transaction in the system, which should be considered in the filter of dates in the Transaction Match Settings dialog box on the Process Bank Transactions (CA306000) form.