The issue has been resolved. I contacted technical support, which is free, and together, the representative and I realized that a duplicate record for this income had been created when I was making updates/corrections to my return. Once the duplicate record was deleted, I was able to complete my return.
Note to users: Be mindful when returning to a record to review or edit, that you DO NOT reenter your information. If prompted to reenter data, that is a sign that you are creating a new/duplicate record.
