Music Disappearing (Roon/Tidal/Qobuz)

Yes, it is there now but is called an "Expanded Edition" and I am not sure that was there before.  The prior link to my playlist version never became available but I found it by going through the artist.  

The other thing I get sometimes is that a song (but not always every song on an album) will come out as static.  I always thought that to be a licensing issue but then I became curious as to whether it was a format issue since all of my DACs do not accept higher sample music files, i.e., I have one set to 24 bit, 48kHz, but I thought Roon took care of the downsampling so maybe back to licensing issue.

With to Amazon. I've never had a problem. 

I've seen this often with playlists.  In every instance, I was able to go back and find the missing album/song.  I suspect the original song may have been removed and replaced with another version, but the playlist is still looking for the old version.

You may see a lot of this on Tidal as they replace MQA albums with FLAC versions.

+1 @jimmy2615 ​​​​@dinosore. The same has happened to me in Roon. It took me awhile to think of searching through "versions" and the artist’s "discography" to find a new or the "moved" verision of the album. So far, worked every time, no "unavailable" albums in my library.

While not on Roon I occasionally have albums show up as no longer available… but in fact they are. I assume they replace them and some intermediate software detects temporary absence and marks them as gone… but they are there.