I'm not sure if this is a bug or it's this the way Elkarte 1.1 works.
In the 1.0.x version I am able to see if a user is online when reading a topic
(Link-3918) In the 1.1 version:
(Link-3920)
I see it just fine from here.
In BeSocial or Light variant?
I see it too, but only in the Light version
Yep, it lacks the background.
Sorry, I viewed it in light.