with the ult, if your laser goes off the map (even just the tip of it going past the outer boarder of the map) the graphics go way off. The laser fires where your CURSOR is, not where the ARROW is. The graphical glitch is absurdly off and makes you miss SO many shots. This is quite problematic because the arrow is bigger and you focus your eye on the center of the arrow rather than the tiny little cursor and usually, you've only got a fraction of a second to line up your laser.
This glitch has been happening since Lux's release and it's been complained about for ages but the only response I've ever seen from anyone was "graphical glitches are low priority"