Customising track order in playlists

[Themeth]

Thank you for the reply, I've carried out tests with several playlists using "No sort". Results are varied and puzzling and a bit concerning. 1. Customising track order with some playlists is successful others still retain the previous order. 2. Further investigation I noticed that playlists were playing all tracks without selecting "Play all" and without gaps. I found 'Gapless to renderer' was set to ON. Setting to OFF, repeated tests gave the same results as in 1. I also found that when powering up my iPad and activating the Melco app, "Gapless to renderer" is automatically set to ON each time?
4. The server is Melco N10 and set to 'UPnP/DNLA compatible mode. Hope that helps.