Hi,

Regarding order of events we get:
1) onSubscription
2) onEndOfSnapshot
3) onItemUpdate (ADD)

After we return the initial set items in snapshot, we have a new Item that we want to listen.
We added it by:
_listener.Add(itemName, GetCurrentValues(true), false);

As soon as we changed it to:
_listener.Add(itemName, GetCurrentValues(true), true);

everything is OK.

Best regards,
Slavko