[GAMEPLAY] Ezreal ult bug

When ezreal ulted me poppy ulted him, and displaced him during his ulting animation. I know that if ezreal ults while being displaced his ult fires from the old position, but when poppy ulted him the animation show that the ult was coming from the new position but the damage was from the old position. You can see the details in the video. I tried in practice tool with using ult and flashing mid animation and works normally. I don't know is it because of the poppy ult or the skin (Debonair Ezreal).