Why are my Child Credits not being calculated?

During the Summary review of my Federal Taxes:

 

Federal Taxes Owed - $20,058

Federal Taxes you've paid, PLUS certain credits - $17,088  (This is the taxed amount from paychecks w/o credits included)

 

When I open the Summary Breakdown, it says my Total Payments and Credits is - $21,288.  This number breaks down as follows:

 

Federal Tax withholdings - $17,088 (same number as above shown on main Summary)

Child Tax Credit - $4,000

Child Care Credit - $200

Totaling the $21,288

 

Why does the Summary Breakdown include my Child Tax Credits but the main Summary Page does not? Causing me to owe money.  It seems the $21,288 figure is the accurate figure which includes my Child Tax Credits but is not being used.