how do I restore the latest version of a playlist that randomly disappeared?
One of my playlists I created randomly reverted back to a version of it 3 years ago. I did nothing out of the ordinary. Just went to play it on my iPhone 6 as usual and noticed that it was half the size and an older version of it. So the playlist itself is not gone, but a whole slew of songs are! I still have all the missing music in my Library just not in the list anymore. This is weird and has never happened before.
Both older versions are on my Macbook air on on my phone now.... the latest version has mysteriously vanished.
It would take way too long to go through and find all those missing songs and put them back on, not to mention highly annoying.
I tried even adding a song to the playlist to the old version as it is now....and it won't even let me do that. It says it adds the song, but it does not show up in the playlist.
Please help! This is ridiculous.
The operating system is OX S YOSEMITE 10.10.2
MacBook Air, Mac OS X (10.2.x)