Why does preview payroll response say problem with my request?

Thanks for bringing this to our attention, @usertedjsawyer.

There's an open investigation with regards to running payroll in QuickBooks Online (QBO) Payroll. Some of our users get the error message "There is a problem with your request. If you need help, contact us" when clicking the Preview payroll button. 
 

Our Engineering Team is aware of it and now working hard to resolve this promptly. If you haven't contacted our Payroll Support Team yet, I'd recommend doing so. This way, they can add your details to the list of affected users and provide you updates once the issue is fixed.
 

Here's how to connect with them:

1. Click the Help menu in the upper-right hand corner and click Talk to a human.
2. Type in "Talk to a human", then press Enter.
3. Look for I still need a human and click on it.
4. Select Get help from a human.
5. Choose between Chat with us, Schedule an appointment, or Have us call you.

To make sure we address your concern on time, contact us within Monday to Friday every 6:00 AM to 6:00 PM PST. Then, 6:00 AM to 3:00 PM every Saturday. For the Advanced version of QuickBooks, you can contact them any time and any day.

We're open 24/7 and always ready to assist. Just click the reply button below so we can get back to you as soon as possible. Stay safe.