Opening an .m3u file from Nautilus results in the tracks being listed in totally random order in Rhythmbox. Opening the same .m3u file in Totem does not suffer this problem. The playlist's track order is correctly maintained.
However, opening the same .m3u file in Rhythmbox by using Music > Playlist > Load from file (rather than right-clicking the .m3u file in Nautilus) DOES load the playlist contents in the correct order.
Confirming.
Opening an .m3u file from Nautilus results in the tracks being listed in totally random order in Rhythmbox. Opening the same .m3u file in Totem does not suffer this problem. The playlist's track order is correctly maintained.
However, opening the same .m3u file in Rhythmbox by using Music > Playlist > Load from file (rather than right-clicking the .m3u file in Nautilus) DOES load the playlist contents in the correct order.