I understand how valuable time is for you, @cmjesquire.
I appreciate you for providing detailed concern and all the efforts you've done to successfully add your new user tracking in QuickBooks Online.
I have here another workaround to ensure your new user can access your account as soon as possible. Let's delete the user and add it back again to retrigger the process.
Once done and the issue persists, I'd recommend communicating with our Technical Support. They have tools capable of pulling up your account in a secure environment and send a ticket to our engineers for review. You can follow the steps outline by my colleague MadelynC in this thread. Ensure to call them within business hours to ensure we can cater to your concern immediately.
Additionally, you can always run the Audit Log by going to the Gear icon. This way, you can review all the user's activities. For more details, check out this page: Use the audit log in QuickBooks Online.
Feel free to visit this article below for your future reference. This link contains steps on how to handle manage users, business information, and other related topics: Account management.
Stay in touch with me if you have follow-up questions about manage users or how the call goes. Keep safe always.
