Sonos - Attribute "source" missing for Pandora stations

I wanted to trigger some different automations depending on which Sonos source was selected. When a SiriusXM channel is playing, there is an available attribute of “source” under the media_player entity, which is exactly the information I need. But when a Pandora station is playing, the “source” attribute is no longer listed. Is this something than can be fixed?

Bump

Does anyone have any comment on this? Seems really strange that, when a Pandora station is playing, there is nothing in the attributes that would indicate it.

I’m on version 2021.6.2.

The good news is that the attribute “source” is now showing when I play a Pandora channel. The bad news is that now SiriusXM channels no longer show the attribute “source”. I wonder what is going on? I would really like to see the attribute “source” to be consistent across all sources.