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We looked at a message found to have gone through that queue during the period the DataExportService was not the new Rabbit broker (a placement update, at 2:31 AM on 30/07/2021) and retrieved its trail through its correlationId: metabase link.
We checked whether that record had been exported by the DataExporter or not and it seems like it did, presumably proving data has been exported regardless of this issue (probably stored/pent up somewhere in the ESR interface and then finally flowing through once the DataExportService got put on the new Rabbit broker).
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