Thunvir3

Hello. I was EV training my machoc next to violine city, with a brac macho (I'm sure had it on me, my machoc was arround 200 atk EV). Suddenly, I realized the item wasnt anymore on my mon. I checked my backpack but wasnt in it. Logged out and in too. So now i dont have the item anymore. I dont know if itsa bug or if I deleted mysteriously the item by error. Can you help ? Edit : I was playing on phone, and I made combats after realizing the bug, and its ot a visual bug, my machoc only get EV 1 by 1