Hi, I have a fb group with less than 5k member7, ive tried to send message to all members,i it showed that it has been sent.. However i feel like that its not working at all. Because i have another account which is also a member of that group, but it didnt receive any message. However i have received a reply from another member. Likewise, i also did this to an event with less than 5k guests. Ive tried again to message all but my other account did not receive message. Why is it like that?