Hi there, CJ. Your bills show as overdue because the printed checks may not be properly linked to the original bill entries.
To fix this, you first need to open the original check and change the Category to Accounts Payable (A/P). This converts the check into a credit that can be applied to a debt. Once saved, go to + Create and select Pay Bills. Then, select both the bill and the credit. This creates a $0.00 transaction that successfully links the two and clears the bill from your overdue list.
Regarding the Last 12 Months default, QBO doesn't currently allow users to permanently change or remove this preset on the Pay Bills page. You will need to continue using the filter or sorting options manually to focus on specific date ranges or vendors.
If you have any further questions, feel free to return to this thread.