State tax filing

What I do not understand is why Virginia has TurboTax Business listed as an approved program for e-filing of Form 770 in 2020.  I assume this indicates it was submitted for approval since the list they provide does not include all tax programs and TurboTax Business was not listed a couple of months ago.  It is a fairly recent addition.  Since Virginia has approved TurboTax Business for e-filing Form 770, why is it not possible to e-file?