"since it's for the pros"

That's not quite the issue; look at the Top, at the full Path. It is a User Group, for using ProSeries Programs, which are tax preparation Software. You are asking a User Group for specific Software, about nothing having to do with that Software. You are not using that software right now, much less preparing a clients' tax return and being stuck on a software program function or data entry screen.

"I am not sure if asking in the ordinary user forum would yield anything useful..."

Intuit, as part of marketing TurboTax, maintains a bunch of Subforums for Community Issues. That's why this is offered in Links. Did you click it?

"Any recommendations in my case? Should I hire an accountant somewhere?"

I googled:

5071C

And found:

https://turbotax.intuit.com/tax-tips/security/tips-for-handling-identity-verification-requests-from-...

among all of the other results.