Which module are you in?  S-Corp?

Try play with inputting it in Screen 31.1, there's a forgiven PPP loan book-non-tax override field there.

Admittedly, I haven't even started populating any of my S-Corps yet.  Too war-scarred from all the software changes as we went along last year that would change my work.  Waiting a little longer for them to make up their minds...