Bugs with iOS 7 music app

Hi, I have a few bugs with my music app and not sure if there are any particular fixes.

1. When I sync my recently added playlist doesn't always update and seems to do so randomly after like a week.

2. When clicking an artist then viewing the album a song is on, only that song appears, then when I visit the album in 'Albums' only that song shoes up and the app offers me to buy all the other songs even though they are there!

I've tried restoring multiple times and it hasn't done anything.

Thanks :)