Error Checker Reports no Errors Until Trying to Print Tax Returns to Mail

After completing the step-by-step process for filing a PA state return, the error checker reports that there are no errors. However, when trying to print the returns to mail, it states that there are errors. Looking at the individual forms, it says "Sch K-1 Weeks" is "(Not Done)". Clicking on the form, I have no idea what is not finished within it. The step-by-step does not indicate that I am missing any fields, especially considering that there are no errors reported.