Music Disappearing (Roon/Tidal/Qobuz)

I've seen this on Qobuz and was told it's a licensing issue. That's just one reason I don't plan to ever rely solely on streaming.

Often on Qobuz it is because they have uploaded a remastered version of the same album so look for that.

I have seen some come up “unavailable” in red on Roon with Qobuz ie.  Pink Floyd Meddle and OBC yesterday.  Good to go today.  Kingfish LIL is available to me now.

Perhaps it’s the case that some music just disappears.  But I’ve often had music that I’ve added to my library stay in my library list, but will not play and is listed as “unavailable”.  9 out of 10 times, if I go to the “versions” tab, the one I have will be unavailable but a new one has appeared that is available (and doesn’t seem to be different in any way - same resolution, same everything apparently).  Perhaps the ‘pointer’ that my Roon core had no longer points to the file/music in the Roon database and has to be reestablished.  Just speculation.