Hey smorgan01,
Welcome to the QuickBooks Community! I will be happy to help. This unexpected behaviour could be due to data damage. I have a few steps to recommend that can verify if that's the case and resolve this as well. Here's how:
- Make sure that your QuickBooks is updated to its latest maintenance release. You can download the update from here: Update QuickBooks Desktop to the latest release.
- Run the Verify and Rebuild Tool to resolve common data issues in QuickBooks. The steps are here: Verify and Rebuild Data in QuickBooks Desktop.
Once done, create a sample invoice to check if the closed Sales Orders are no longer showing up.
You can also use the QuickBooks File Doctor to fix your company file, just in case you can still see it.
Please keep us posted, or reply to this thread if you still have the same result. We'll look for other options to resolve this.
