Deposit resolved?

A customer wrote us a check and we deposited it.   When I tried to match to the transaction, it turns out he overpaid by $20.99.   I think he is dyslexic and no one caught the error.  Matching the transaction did not work, but it allowed me to click on "resolve" and then it appeared to match.  The invoice shows paid.

However the transaction is still sitting on my main bank transactions page and it will not let me do anything with it.   I explored undoing the payment but was given a bunch of warnings about amounts not matching, and I don't want to make this worse.  How can I get this fixed?

EDIT: it appears to have resolved itself so no help needed, thanks.