Thank you for responding and offer of assistance.
I updated my TT software (Mac OS) and redid the form via the interview and the problem, an incorrect entry on Part A line 3 has corrected itself upon reopening and is now consistent with the easy steo interview calculation and my calculations on a downloaded IRS form 8889.
I have had trouble with form 8889 during this tax season, this is the second glitch, but it seems to be correct right now. The problem was that the entry on Part A line 3 did not have the amount calculated by the TT interview and reflected the increased contribution limit of $4650 for those over 55 and instead had the worksheet calculation, which was for those under 55 ($3650).
