know why, when I try to run a blunder-check on someone's game with centipawns set to 01 and symbols unchecked (yup, I'm testing for engine use...) the analysis seems to stop after about 30 of 45 moves, or 40 of 55, or whatever?

There doesn't seem any option to, e.g., not include the endgame in analysis. And there is no decisive advantage at the point when the analysis stops.

Am I missing something?