Lol client somtimes crashes when i open the hextech crafting tab. [CLIENT]

Sometimes when i click on the hextech crafting tab the client disappears, but it doesn't really crash since when i reopen it says the client is already running and asks me if i want to shut it down. I think it only happens if you go into it right after getting a key fragment but i am not really sure and i can't exactly recreate the bug since key fragments are pretty rare although if i do get one i will try. This has also happened to a friend of mine so its not only on my client. If anyone gets a key fragment it could be helpful if you said in the description whether it happened or not. I'll keep testing and will report here anything interesting that i find.

EDIT 1: I played a few games and it didn't happen again. Worth noting that those games were ARAM and i didn't get a key fragment on any of them.

EDIT 2: it just happened again. After 20 minutes of waiting in queue i clicked the tab and the game disappeared, i dont remember if i got a key in my last game, or a chest. (edit: just checked i didn't. gonna keep trying to see how to recreate)

EDIT 3: seems it doesnt only happen when you get a key or a chest.