Freeze up any battle

Every time I battle campaign or 1v1 it locks up supermechs logo

Well, with me, whenever I select a weapon to use in the arena, it never seems to go through with the command, but it will gladly allow me to move and use the stomp, but I have those legacy mythical barricade legs, so they can only be used twice, leaving me helpless and having to depend on my drone which can barely do jack squat.