[CLIENT] Login Music bug

First off, my computer is very slow and this bug won't happend to people with a fast computers or atleast decent. Now the problem is simple, when i log into my account on league of legends my computer makes it so the backround music and animation is just a black screen with no sound and i can login without it. But once i have logged in, the backround music that's supposed to be in the login menu is constantly playing untill i either turn off the client sound or exit league. I can let the music and animation start before i login but if i do it to fast the problem occurs and its annoying if it happends. note: the music still plays when im ingame or anytime when im even logged in.

Fast expination:

1. I have a slow computer.
2. I login before the login music and animation begins.
3. The login music starts playing and won't stop ever, even if i start playing.
4. Have to exit the client and login and wait for the login music and animation starts.

I did see someone else make this post, but it wasn't very detailed so i though i would make another more detailed one. -mrJogurt13