For Tidal albums not in my library, there is no heart icon shown at all - not by the album, and not by the track.
Once a Tidal album has been added to my library, then the heart icons appear at both the Album and Track levels. They also work as expected, cycling through “off”, “favourite” and “ban” with each click.
However, in the “Now Playing” screen there is this non-operative heart icon shown at the Album level for Tidal albums not added to my library.
This seems to be a UI bug? The icon should not be shown in this case…? The same could also be said for the Lyrics icon in this situation…
On a device using a mouse, there is at least visual feedback (when the icon can be clicked, the cursor changes to a hand symbol). However, on a touchscreen device, there is no visual feedback given.