Hello,

the message < WARN> Unexpected update for item spot39 is shown when Lightstreamer server is feeded with an update for an item that is not subscribed to.
Looking at your client code it seems that you subscribe to the spot item, not to the spot39 one. Do you change the item name in the MetaData adapter?
If not, note that each update for a COMMAND subscription must be sent to the same item (spot) and spot39 should be just the value of the key field.
In the other case, please, could you send us a server log showing the issue so that we can better understand what happens?