[Gameplay][TFT]Graves missing at point blank in End Phase

3* Graves with Rapidfire Cannon, Bloodthirster, Cursed Blade and the Buff from 4 Gunslingers. He basically 1v4'ing a bunch of brawlers, killing two of them. With the last 2 remaining, the round is near the end and attack speed increases for all. Suddenly, all of Graves' attacks deal no more damage. The main target (a 3* WW with thornmail) has no dodge items, neither does the other brawler (a reksai or blitz 1 *, I didn't pay attention to that) . This continues for a few seconds untill my Graves, getting no more lifesteal because he can't hit, dies.

The other player stated he didn't see any 'dodge' or 'miss messages'.. Perhaps projectiles get removed too early because of the increase to game speed? Or Graves' targetting was bugged because of shooting at 4 targets and 2 'disappeared' from dying? He was facing the WW, with the other brawler in a hex next to that WW.