These flow through to the K-1 when I tried.  You may like to check that you have made all the entries correctly.  Otherwise, send the return to Intuit Support and have them look into that for you.

See this article for more info.  It works the same way for 1120S: https://proconnect.intuit.com/community/form-8949/help/complete-disposition-of-rental-activity-with-...