Hello there, droth1.

I hear your sentiments. Know that this isn't the kind of experience we want you to have. 

Our product engineers are now working to fix this. What we can do in the meantime is you can create the invoice first and receive the payment. You may exit from the transaction after the error and the payment is applied.

If the issue persists, I'd suggest checking your browser. You can open a private window. Here's how to access incognito mode in some of the most commonly used web browsers:

•  Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Microsoft Edge: Ctrl + Shift + P
• Safari: Command + Option + P

You can refer to this article if the steps were successful: Clear cache and cookies to fix issues when using QuickBooks Online.

You can visit this article to know how to personalize and add specific info to your sales forms: Customize invoices, estimates, and sales receipts in QuickBooks Online.

If you have any further concerns about your transactions, don't hesitate to post them here. Have a great day!