I hear you, and am aware of that too. But adding up the dollar and cents amounts to:
Actual sum of monthly amounts on 1095-A: 4495.44 and 4478.88
TT calculated sum: 4495 and 4479 (same value on 8962 and 1095-A)
Each of those rounding errors is < 1, so it's unclear why the rounding error would accumulate to 5.
If I decide to pursue this further, I'll take it up with the support options you mentioned (yes, I'm using Home and Business on desktop), and appreciate all the help from you so far.
Thanks!
