[BUG] Incorrect sound with the new krugs

Hi. I was playing my first game in the preseason patch and I went to invade the enemy jungler. As I walked by his red buff I noticed a sound and realised that I could hear the enemy jungler fighting his krugs without having vision of him. I don't have much more info on the matter sadly but i wanted to Bring it to light so someone could investigate and hopefully resolve the matter. If anyone else has experienced this or has any more information please do let me know.