Not sure what you mean by 'not in order'?
In normal playlists, they are sorted by whichever field you choose. For example artist, title, genre, bpm, key. You can keep the original order in which you added them, by clicking on the '#' heading.
To test this I just created a new playlist and added a few tracks - they did stay in the order I added them, but the only way I was able to change this was to sort by a different field. Clicking '#' returned them to the original order.
Hope this helps.

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