Hi @AmericanRV, I'll share details about your reconciliation.
Transactions within the reconciliation period after undoing the process need to be reconciled again to avoid messing up your account balance. It's best to leave the balance adjustment since it is an entry created as supposed fixed and you're able to check off everything.
However, I still recommend contacting your accountant for guidance while working with your reconciliation. They can also share the best accounting practices to follow to avoid messing up your account books. Use this link to find someone you can work with: QuickBooks Certified ProAdvisor.
You may also read this reference that'll guide you anytime you need help while doing or fixing a reconciliation: The Reconcile Workflow in QuickBooks.
If you've got questions other than how to reconcile your credit card account, please let me know in the comments. Use the Reply button below so that I can continue assisting you.