The Schedule B-2 is now live with the most current ProSeries update.
To ensure you are on the most recent update please go to:
UPDATE and select UPDATE INSTALLED PRODUCTS. Ensure ProSeries installs updates and relaunches.
2018.6.0 is the most current version of the 1065 formset. (To check your version, go to HELP and select ABOUT PROSERIES, in the new window select the VERSION tab and ensure your version matches the one mentioned here).