This is similar to the following MC27 post.
https://yabb.jriver.com/interact/index.php/topic,128382.msg890785.html#msg890785I'm using MC28.0.32 and just activated the Number Plays and Last Played fields last week. My Bose Portable Home Speaker Number Plays usually acts the same as the MC27 post. Today the first two tracks of an album I haven't played had the
Number Plays and Last Played fields updated correctly, but when the third track started the Number Plays was set to 1 and Last Played was the time the track started. When the track ended, Number Plays increased to 2 and Last Played was the ending time. This continued until the last track. When the last track started, Number Plays was set to 1 and Last Played was the start time. When the track ended nothing changed for either field.
On my Sonos Play3 it acts differently. After the first track ends Number Plays and Last Played isn't updated. When the second track starts Number Plays is set to 1 for the second track and Last Played is the time the second track started to play. Nothing is changed after the second track ends, as expected. The remaining tracks work the same as the second track. When the album completes, Number Plays is blank for track 1 and Last Played says never played. This has occurred with two albums on the Sonos Play3.
Looks like these fields may be dependent on the renderer for the device and is something that would be difficult to fix.