I agree. I am having the same issue. Spent a decent amount of time calculating cost basis for a Gold Trust ETF only for it to be wiped out by what seems a new 2021 TT feature "rounding at the entry level" instead of rounding at the end. In my view this is a bug not a feature and as @sophieluu1606 has researched seems inconsistent with IRS guidance (and anything you learn in 1st semester engineering school).
Please fix this before we file.
