Troubleshooting streaming when not connected to wifi

[margew]

Plan

Premium

Country

USA 

Device

iPhone 6

Operating System

iOS 10

My Question or Issue

For the last three weeks or so, Spotify hasn't let me stream music on my phone (other than music I've downloaded) when I'm not connected to wifi - it says "connecting..." and shows me the buffering wheel whenever I search. I don't think it's a network issue because all other apps that require data are functioning normally. All app updates are current, and I've tried deleting and re-downloading the app. In Settings >> Spotify, Cellular Data is turned on. Spotify functions normally on my computer.

Any ideas?