Failure to enter value of Traditional IRA on Dec. 31, 2021 was not detected, resulting in miscalculation of tax owed.

My failure to enter the value of my traditional IRA on December 31, 2021 was not detected by the TT Federal Review.  As a result, there was no entry on form 8606 Line 6 and a gross miscalculation of the taxable amount of my distributions.

 

I didn't see any reason why a blank on 8606 Line 6 would ever be valid. It looks like a TT bug to me. Is this the case?