Shyvana ult and tp

If I'm in base and I use teleport, and ult, but aim towards their base, my ult would go towards my base instead, because I just teleport from there, doesn't matter if my cursor was at their base. Same thing if I'm at top turret, then tp bot lane, if my cursor is aiming at them, Shyvana would ult towards top instead because I just teleport from there. It happens when you ult immediately after teleportation. And I have it set to full smart cast.