I have a rather long playlist, over 1000 songs. When I try to create a copy for backup by adding to a new playlist, I am sometimes told that it can not be done at this time; at other times, nothing happens. If I try to add it to an existing playlist, nothing appears to happen, but when I edit the destination playlist, it appears that all of the songs are there, but not in the original order. (I have manually sorted it) The song count shown doesn't change.
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