Mecha Malphite Skin does not stay from game to game [CLIENT]

When you choose Mecha Malphite for the game and then play malphite next game, the skin goes back to default skin, you have to choose mecha malphite each time. additionally I am used blue chroma skin

Champ Select>pick maphite for champ>choose mecha skin. Next game lobby>Champ Select>pick maphite for champ>Skin goes back to default Malphite Skin

Happens Everytime