Let's perform a few browser troubleshooting solutions to solve this unusual behavior, Bfgs2009.
 
To resolve the issue with the missing email address field, refresh the page and try logging out, then logging back into your account.
 
Next, we can clear your browser's cache. Corrupted cache files can prevent web pages from displaying correctly.
 
If the issue persists, we can use a different supported web browser, such as Chrome or Firefox, to help you determine if the problem is specific to your current browser.
 
Here’s an article for more information on inviting your accountant to your QuickBooks Self-Employed account: Invite an accountant.
 
We are always here to support you with any questions or clarifications about inviting your accountant.