Empty playlist

[danaew]

HI,

I have a strange problem and cannot find a solution on internet. I have multiple playlists but most of them (not all) are empty on my iphone while I can see and play the songs in he same playlists on my laptop.

And also, in these playlists there are a lot o f songs grey (not playable), some are form itunes on another laptop but some I loaded up myself. How come these songs are grey?

I hope someone can help me, kind regards Danae