Self Employment Taxes Not calculated by Turbo Tax

I have used TT since the mid 90's.  Reviewing my Social Security statement of account, it shows on my earnings record that I have no SE taxes on 2013, 2017, 2018, 2019.

 

I have been self employed since 1996.  I never looked in detail at the return prepared by TT but checking now, there is no SE tax calculated.  Seems to be an error of the software or perhaps how I coded in my information.

 

I appreciate feedback.  !