Glad to see you again, @gloriadeb204.

Yes, you should mark it with an asterisk, this sign means it's uncleared. The checkmark is for the reconciled transaction.

After putting an asterisk you can go to the Bank Register and delete the transaction or edit it and assign it to the correct account.

I've added some screenshots for your reference:

Once done, you can follow this article to recreate the check if it's deleted: Reconcile previously deleted and re-entered checking or credit card transactions.

Please know that you're always welcome to tag my name in the comment section if you need further assistance or other questions. It would be my pleasure to help. enjoy the rest of your day!