Sometimes local internet cache files stored in the system can cause unexpected behavior in the product, @karen39.

It would be best to perform some basic troubleshooting steps to fix this issue.

We can start by using a private browser. This a special mode where the browser doesn't record the browsing activity on the local device, so no trace will be left on the computer. You can simply press these commands to access this mode:

• Press Ctrl + Shift + N (Google Chrome).
• Ctrl + Shift + P (Firefox or Internet Explorer).
• Control + Option + P (Safari).

If the reference number shows back, then let's clear the cache in your web browser or try using a different supported browser. This might be a temporary issue with QuickBooks and the current browser that you use.

Please let me know how it goes in the comment section. Just click the reply button so I can provide you further assistance.