[Gameplay] All emotes lost ingame

Today I played an Aram game where I didn't have any emotes. I was supposed to have 4 emotes (the one at the center, up, left and down), but when I pressed the key to use them (T) no one showed, like if I didn't have any equipped. When game ended, I went to the client to see if I had them and yes, I had them equipped. It only happened one game, but I don't know the cause.