" This is a K-1 received on my personal tax return vs. an entity return."
None of the TurboTax personal income tax preparation products support Form 8990 (see screenshot).
See generally https://digitalasset.intuit.com/DOCUMENT/A5FP7N8Ic/2018-unsupported-calcs-L1FQfTTgn-1.pdf
If you need the form then, unfortunately, you will have to prepare it manually and then print and mail your return.
https://www.irs.gov/pub/irs-pdf/f8990.pdf
