Raccoon Dog loses his voice....

I am reporting this bug after testing his skills in bots for the first time. This bug happens after coming out of his camouflage stealth (R -Thrill of the Hunt) and performing his full combo, leading the enemy champion bot being slain. I have tested this for about two to three times to confirm it. He does not say a word nor any champion (ally and enemy team) not saying a word after the ultimate. I checked the sound in the options menu two minutes after the incident and the sound voice volume was normal (voice volume was at default volume before and after the incident).