Did he happen to say anything?
Today in Gecko, i've encountered a sniper with the name of Deadsquad.K He had 192 HP, 14 AP and a shitload of armor class in CA, 5% chance to hit him while he is moving, 95% while is is standing still
maybe you were idler for a moment, so you had 5% to hit and couldn't sneak,then a few seconds later your idling timer run out and you lost penalties but hecould still see youif you logged off on WM for a few seconds then logged in and entered CZ youwould have a few seconds of idler, because the timer increases while [off]
it seems like sometimes sneak is disabled on login or entrance into CZ when it shouldn't - should be fixed on next update.