Tax due is diff on 1040SR to be filed vs 1040 under Forms in TT.

I've run into a discrepancy.  When I print the PDF of 1040 SR before filing, it shows zero tax due.

When I look at the forms behind TT, the 1040 shows a tax due of $175, which indicates it's SE tax.

There is a sufficient NOL to wipe out that tax due.  

What could be causing this diff?  The taxpayer is a missionary and has not paid SE before due to NOLs.  What could I be missing in not brining the forms down to zero like the PDF?

 

This is on a desktop PC.

 

Thanks in advance for any comments you can provide.