Is the "Observing/Composing members" feature broken?

A Flutherer has contacted me in PM to ask if there is a problem with this feature, because since fairly recently, she only ever sees herself on this; i.e., never more than one Observing or composing member even when others appear to be active in the question. I can’t really check right now because Fluther isn’t currently active enough but she and I are curious if anyone else is seeing the same thing?