PubSub - Publish not sent to offline user

Hi at all,

i have a problem with pubsub node.

I created a node with this configuration:

pubsub#send_last_published_item = “on_sub_and_presence”

pubsub#persist_items = “1”

pubsub#max_items = “1”

pubsub#notification_type = “normal”

Behavior:

A = owner

B = subscriber

When B subscribe to A’s node , B receive the last published item and update ( when B is online ) but if B is offline and A pubblish to the node, when B return online not receive any notification of this new item on A’s node.

What is my error ?

i need to explicity request last published item of A ? or i have to change node configuration ?

Thanks in advance.