I tried duplicating this but there are too many things happening at once.  I'm assuming there was $13,893 of Schedule C income for the amount on Schedule 2 to be SE tax -- but then, there must be other adjustments to income.  IRA, perhaps?  And the IRA computation can affect the SS computation.  Is the total income $38,732 including the $7,836 unemployment?  I can see why IRS might be confused.