Everytime I download a song on my phone the app sudenly becomes unstable. Playlists wont start to load (the green buffer just keeps showing), my phone start to lag, songs being played while downloading wont buffer, and once you access other application features spotify would stop responding and I have to manually close it in the app manager. This has been happening for over a time now (at least three months to be exact) and I found that its just easier to let those songs download first and put spotify in offline mode but sometimes it just becomes iconvenient. (i.e. when trying to search new songs and download them, streaming music online, etc.) Has anyone else encountered this issue? Is it a software problem or hardware problem? My friend encountered this and he stopped premium because of it.