Cannot group rooms from Spotify

[brazoo]

Gooday!

I'm not sure if this is a Sonos or Spotify issue but here is my problem:

I have four Sonos speaker set up on same wifi, I can stream music to all of them from Spotify with no problem. In the past couple of days, I noticed that I could not group speakers from Spotify. In the past, I was able to invoke the Sonos app by pressing the ellipsis, then grouping or un-group the speaker.

Now, nothing shows-up to group (or un-group) the speakers (see attached screenshot).

I'm I missing something here? Was there an update that broke this function?

Thanks for your help!

-g

Plan:Premium

Country: CAN

Device: Pixel3

Operating System: Android Pie (latest update)