If a check that has cleared the bank showing and still showing as unpaid?

Good to see you here in the Community, userkathleen1. Allow me to share insights that can help you on the right track. 

Are you referring to a bill that is still open? If so, you can follow the steps below if the check has been reconciled and you want to apply it to the open bill.

1. Open the Check you created.

2. Change the affected account to Accounts Payable.

3. Select Save and Close.

4. Click Yes to confirm the action.

Next, open the bill and link the check created to the open bill:

1. Go to the Expenses at the left pane.
2. Select Expenses.
3. Look for the bill created and click on Make payment under Action.
4. Click Save and close.

Check out this article for more information on how you can add and match transactions you've already entered into QuickBooks: Categorize and match online bank transactions in QuickBooks Online.

Fill me in if you have additional questions or concerns about bills and bill payments in QBO. I'm always here to help. Take care always.