Hey there, @cjcntreasurer.
I hope you're enjoying your Friday so far.
I'm happy to explain what's going on with your reconcile. Anytime that you modify a transaction that's been reconciled will exclude it from the prior reconcile. Modifying meaning, changing the date, adding a period to a memo, changing the dollar amount, or making a copy.
To resolve this, you can unreconcile the previous reconcile and include the sales receipt in it. Or you could perform a mini reconcile, which is a reconcile that's dated only to the time frame of the transaction (sales receipt). Below I've included a couple of articles that cover how to do both.
I recommend connecting with your accountant/bookkeeper before making any changes in the file to ensure this is the best course of action for you and your business.
Please don't hesitate to let me know if you have further questions or concerns. I'll be here every step of the way. You can always reach out to the Community anytime you find you need a helping hand. Take care!