(Gameplay) Weird Blitzcrank grab

would trow his q and (as ashe) I dodged it by stepping backward. But here's the thing: after evading it I would turn back into the fight but I got grabbed AFTER the q reacchd his max range, while the hand was "returning" to the body (not very clear but it does look like that). Anyway, important thing is the animation was over but I got grabbed by stepping back into the range afterwards. Blitz does't know what happened either (told me in chat after the game) and in the game did in fact turn away to back after he "missed".