Hi @eliafaure , thank you for the extra details. We’ll investigate this.
It seems that the first stage of communicating a message (which does the object pre-registration – you can thing of “objects” as the serialized blobs that comprise a RecordDict, which is the payload type of all Message objects) fails. But even though it fails, the second stage of communicating a message (i.e. actually pushing all the serialized blobs) goes ahead triggering the ERROR: Object with ID ... was not pre-registered you observe.
Did you observe any of these errors also in the SuperNode container? or only in the SuperLink one?