Dravens Q E and R INVISIBLE visual bug

As the title says ive pretty much seen this bug every time i play vs draven, his abiltiies are complete invisible and its incredibly annoying to play against apparently some streamers have complained about it and it sucks im going to have to waste bans on him just because i don't want to be fucked over by visual bugs. Please fix this so i can go back to banning something else.