1099R Taxable amount not determined

We have a 2021 1099R from a Roth IRA for a distribution that was the removal of excess Roth contributions in 2019. The total distribution was ~10k (7k excess contribution plus it's earnings)

Box 2a is blank, and taxable amount undetermined is checked. How do we handle this in Turbotax?

We have amended 2019 return to pay 6% penalty on the 7k excess, but how do we report the 1099? In 2019?

I  believe only the earnings (~3k) are taxable as normal gains plus 10% penalty for early withdrawal?

Just don't seem to get there in Turbotax.

Thanx for any help

PC