Form 8917 is not calculating Total Income correctly

Turbotax is doing something strange on lines 3 and 5 of Form 8917 for tax year 2020.  It should simply subtract line 4 from line 3 (the total income ) to get line 5 but I'm seeing a value in line 5 that is almost $10,000 more than what it should be.  I suspect it has something to do with the $10,200 Unemployment Compensation exemption enacted by Congress in March 2021.  That value gets correctly subtracted off on Schedule 1 line 8 to help determine the Total Income on Form 1040 but Turbotax may have forgotten to take this into account on Form 8917 line 3 when determining the Total Income there.  The Turbotax "Education Tuition and Fees Summary" that  it generates internally calls line 3 the "Modified adjusted gross income" rather than "total income" as the stated on Form 8917.  But I don't know how this "Modified adjusted gross income" was calculated.  Anyone else see this problem?