RSMB and combustion (windows) bug ...

Hello
I have a bug (annoying ;)). In combustion, when using rsmb, but not all the time and didn't find yet when exactly, all objects in my timeline disappears. For example, when you nest and then add a rsmb, usually, you loose the object names in the timeline, it's like an empty timeline.

To correct the problem, you can delete the rsmb (disabling it changes nothing) or you select an object higher in the hierarchy in order to get back the objects in timeline. But if you go back to your normal level (like working in the nest), you loose again the objects.

Not sure I'm clear.
Are you aware of this problem? Is there a fix?

Thx