<PagingData flow does not collect until the first ...

# stackoverflow

[user]

PagingData flow does not collect until the first change
I have a chat application and i collect the messages from Room Database ONLY (not from Internet resource). I use the dependencies
def room_version = "2.5.0-alpha02"
implementation "androidx.roomroom runtime$room_version"
implementation "androidx.roomroom ktx$room_version"
implementation "androidx.roomroom paging$room_version"
kapt "androidx.roomroom compiler$room_version"

implementation "androidx.pagingpaging runtime ktx3.1.1"

From the Database i have the query
@Transaction...