Ruben:

Update.  After a 52 minute phone conversation with support, I was told that the software is doing what it's supposed to be doing (even though it's not).  The rep said there was no one else to talk to, and this problem could not be escalated.  I sent a sanitized copy of the file for her to look at, but she didn't see the problem.  The problem remains that on the MO-A, Part 3, the software is not adding Section A line 5 with Section B line 8 with Section C line 4 to come up with the total for Section D (total Pension and Social Security Exemption amount.  Seems pretty simple to see that it's not adding these together, but what do I know?