Hi there, @markatgoefi. I appreciate you for making an effort to resolve the issue by following the steps provided by my colleague. Since you're still unable to proceed, let's troubleshoot this matter further. 

One factor you need to consider when you encounter this situation is your browser. When our browser gets overloaded, it causes lagging and formatting issues while working on your QuickBooks company. As a result, you'll encounter difficulties when saving your newly converted employee. 

To address this, we can consider opening your account using a private browser as they won't save your browsing activity, cache and cookies, or site data. To use one, here are the keyboard shortcuts you can follow:

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

Once there, open your account and try to create your employee's profile from scratch. If you're able to process this using your private browser, please clear your browser's cache for a fresh start. Also, I suggest using an updated browser so you can utilize QBO to its full potential.

Moreover, please make sure to verify that your employee's name and Social Security number (SSN) matches with Social Security's record. This way, we can ensure that the entered SSN is valid, to check if please visit this website: Social Security Number Verification Service. 

In addition, I'll include this article you can check if you have need help in managing an employee residing in a new state: Set up employees and payroll taxes in a new state
 

Comment back in this thread if you need further help in entering your employee's SSN in QuickBooks, @markatgoefi. We'll make sure to help you as soon as possible.