iPhone X (issue occurs on older iOS devices as well)
iOS 11 (occurs on older iOS versions as well)
2014 Honda Civic
Metadata is inconsistently displayed when playing media over bluetooth to Honda headunits for 9th generation Civics (2012-2015) and other simular Honda infotainment systems. It appears that on first pairing, metadata is displays perfectly fine but after the car is turned off and bluetooth is disconnected, metadata stops being updated until either the user kills the current Spotify instance or plays media using iOS's first party media apps.
Steps to Reproduce:
An alternative fix to getting metadata to display is to play media from first party iOS apps such as Apple Music or the native Podcast app. However, switching to native apps and back to Spotify or killing the app and restarting it to force metadata to pass through is a pretty terrible user experience.
Hopefully this is detailed enough to help.