Welcome to the QuickBooks family, TJG.

Thanks for bringing this issue to our attention. I'm here to help save the footer of your invoice template.

To help determine if the problem is template related, you'll need to create a new one. If you're able to successfully save the footer in the new template, it signifies that your existing template is corrupted and need to be recreated.

If you need further help with the template, I'd recommend you add more details about the issue by adding a comment below. I'll be sure to get back to you.