that could be it, it stopped working right after underlining a couple of stats.
im assuming you use ubuntu for your os, and i want to ask you if you play on ignition and found a way to use their poker client instead of playing on the web browser.
so i kept tryin by turning drivehud on and off, during one session,
blank huds would show up on one table( it was all black, and it allowed me to add notes)
a wierd thing was that there were some stats showing for one player.
i beleive why it seems inaccurate is because it is not recording limp & fold preflop but limp and fold post flop aswell