Sonos display problem when players are grouped together

Hello,

I have 5 Sonos players. When they play different musics, all is fine. When I group together some players, only one of the players continues to display the title and the album picture correctly. The other ones do not display picture anymore, the title is wrong (it is the title that was previously played). The track time is also incorrect. 

I often get the "Cyclical reference detected" on one of the Sonos devices, but this might not be linked to the above issue. 

Thank  you for your help,

François