LG Optimus F5 — LG L Fino - Apple Music Playlist crashes phone

I have Apple Music installed on my LG L Fino and have a list of Playlists. Things used to be fine with them, I could scroll down and select a particular one. Now however when I scroll down, the list stops at a certain point, the screen freezes and after a few seconds goes white and i have to exit Apple Music. I can scroll down songs, artists etc with no problem but not with Playlists.
I have tried deleting a few to see if they are the cause of the problem and have reinstalled Apple Music on the phone a couple of times without solving the problem.
Any ideas please?
Thanks..