message path clarification please

[Thierry]

Hi,

Struggled for a while on trying to share a sound player on multi- 
cards....

Then, did a light stack-one card with :

button B1
group G1
button B2 inside G1
group G2 with backgroundbehavior set

the buttons: on mouseup Hello end mouseup

put the handler on Hello ...  in the group G2.

the group G2 never catch the message of button B2 ( inside G1 ) ?????

Is this a normal behavior of the message path ?

If someone can clarify ( explain ) , I would be very happy

Regards,
Thierry