I'm new to Spotify, registered a few days ago. I have one question to playback on my Android device. I have some albums which I have marked for offline playing. Furthermore I have a bluetooth receiver in my car which is connected to the cars aux -in. Playback was fine until I paused playback because I left the car for some time. I paused the playback before leaving the car. When I came back about 2 hours later I tried to resume the playback. That did'nt work, had a "Title not found" popup (I use the german version, so I don't know the exact popup for the english version). When I immediately start the playback of that title from the beginning it works.
I tested that later on and was able to reproduce it even with other titles. It seems as if does only occur if the pause is longer than x minutes.
Any idea about it? It would be nice to be able to continue playback without restarting the title.
The second question is about offline tracks in general. I learned that I can mark up to 3333 titles for offline mode and that I have to go online at least every 30 days. I think this necessary to check if I'm still on premium account. As mentioned before I have marked some albums for offline playing. I think those were downloaded to my Android device. Are these played offline even if my device is online?