It's good to know that you did everything to fix the issue, and I appreciate you for that, @jason192. 

I understand how frustrating it can be when the system doesn't work as expected. Your feedback is valuable, and I encourage you to share it directly with our product engineers so they can use your insightful input to enhance your QuickBooks Online experience. 

Here's how:

1. Hit the Gear icon at the top, then select Feedback.
2. Type in your product suggestions.
3. Click Next to submit feedback.

You can also visit our Customer Feedback page to track the status of your request.

I'm adding this future reference if you want to personalize and add specific info to your sales forms: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Please keep me posted if you have further questions or concerns about the invoice number in QuickBooks. Simply leave a reply, and I'll get back to you.