Currently for some reason when the Android app is in offline mode it doesn't show the file's metadata but uses the path to try to figure them out. The files do have metadata and show up correctly elsewhere.
It'd be nice if there was an option to have it only display pinned and cached tracks if the data connection drops. So when I walk into the subway and go to select some music I don't need to first change it to offline mode which disrupts the current playing tracks (which perhaps should be fixed too).