[Gameplay] Graves Fires at Seemingly Nothing When Using Auto-Walk Command and Wastes Shots

This happened twice to me on Twisted Treeline. I would be in a fight and since I frequently use the A command to auto/walk, Graves would fire in some weird direction at literally nothing. This occurs at 10:30 with my fight against Teemo, Graves shoots downward toward the terrain wasting a shot and missing Teemo completely. This also occurs again with Teemo at the 24:00 minute mark; I am kiting toward my dead tier 1 tower and all of a sudden Graves shoots upward at the turret for no reason wasting a shot once again. Graves only seems to do this when I use the A command as there is nothing target-able/clickable that he is firing at so it can't be a misclick issue.

To Replicate:

1. Initiate fight
2. Use the A command to auto/walk in a direction while fighting (A+Left Mouse Click)
3. Attempt to auto the enemy champion using the Auto/Walk function without clicking directly on the champion

For whatever reason I cannot get my screenshot to upload, but the latest TT Graves Replay shows it all.