As pr my post above, Qobuz Customer Support reports “Please try to delete this from your favorites and put it back again: 0886444614023, Maybe it changed the catalog number”.
I already HAD deleted the album and re-added and, yes, the content returned. I am going to forget about it.
I also agree with david_ten's post above. As I said above, Qobuz hi-res albums sound terrific. Their hi-res sound quality is excellent and is much better than the non-hi-res albums. Qobuz hi-res streaming is the REASON WHY you should subscribe to Qobuz. IMHO, the hi-res sound quality is easily worth the price. In other words, Qobuz is a recommended music streaming service. I also find myself listening more to Qobuz Hi-Res Albums than Tidal. I subscribe to both and probably will continue both subscriptions for a while. We will see.