It is indeed unusual that the payments appear in the Make a Deposit window but are not visible in the Undeposited Funds account. Let’s work together to resolve this issue, Catgraham.
Before we begin, I suggest creating a backup of your QuickBooks file to ensure your data remains safe. Also, let's make sure your program is running up-to-date.
Once your program is up to date, if the two payments are still not visible in the Undeposited Funds, let's utilize the Verify and Rebuild tool. It helps find the most common issues in a company file. Let me show you how.
To Verify:
- Go to the Window menu and select Close All.
- Then, go to the File menu.
- Select Utilities.
- Click Verify Data.

To Rebuild:
- Go to the File menu.
- Select Utilities.
- Click Rebuild Data.

You can also check this link for more detailed steps: Verify and Rebuild Data in QuickBooks Desktop.
In addition, I'll include these articles to assist you in effectively receiving and managing deposits from your customers:
Handling deposits is crucial, and I am glad we could ensure yours are in order. Thank you for your patience today, and remember, the QuickBooks team is here to support you as you continue your journey with us.