Queue randomly clears.

[thedergins]

My queue will randomly clear on the Spotify iOS app. It seems to occur more often when I switch devices (for example, when I boot up Spotify on my iPhone after playing music on my desktop). However, I've seen it happen after turning Spotify back on on my iPhone after a long period (a couple of hours) without use. If there isn't necessarily a way to fix this problem, I'd like to at least know what causes it so I can prevent it from happening.