Thanks for getting back to us, accounting452. I'm here to lend a hand regarding your duplicate concerns.

Can you please attach a screenshot so I can further check it here?
 

When searching for transactions in QuickBooks Online, it will depend on the criteria you choose. Please refer to the screenshot I've added for your visual guide:

Also, you'll want to check the Audit trail to verify if there are recurring transactions. Here's how:

1. At the top right, click the Gear icon. 
2. Select Audit Log.
3. Use the fields on the Filter panel to choose the appropriate User, Date, or Events filter to narrow the results.
4. Select Apply.

I'll be right here to keep helping if you have any additional questions regarding duplicates in QBO.