Account reconciles against paper statement, won't reconcile digitally. How can I fix this?

Thank you for reaching out to the Community, @twolf. Let me help you proceed to reconcile your transaction.

Reconciliation process can be very tricky specially if you have duplicate transactions in your account. What we are going to do is to check the previous reconciliation to see if we can spot any errors on it. Once done,  If all turns out correct I suggest to review the opening balance and then input the correct amount if necessary.

You can refer to this article about the reconciliation workflow in QuickBooks.

Once everything is fixed, we can now start the reconciliation again.

In case you would want to learn about how to enter an adjusting entry for a reconciliation, you might want to give this page a visit.

Let me know if you have additional questions or clarifications about this. I'm always here to help. Keep safe!