"i need this to call again the message, but why ? and so there is a latency to have the name of the clip playing"
because at some point, when you have an observer triggering some requests to the LOM (aka LOM requesting things on itself by itself) you have to use [deferlow] in order to defer the request and to "cut" the control/feedback loop (short explanation as I don't have so much time at the moment)
In the documentation, for live.observer reference:
" Also, it is not possible to modify the live set from a notification, i.e. while you are receiving a value message spontaneously sent by a live.observer 's outlet. "
Actually we can, but deferlow can help.