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Click event data is generated by a web server and published to a Pub/Sub topic. A Dataflow streaming pipeline consumes this data, applies transformations, and publishes the results to a second Pub/Sub topic for the advertising team. Each message includes an eventTimestamp . The advertising team expects to receive messages within 30 seconds of the original click, but they are experiencing delays. Monitoring shows the system lag is approximately 5 seconds, but data freshness is around 40 seconds. The messages appear to contain correct and timely event timestamps. What is most likely causing the issue, and how can you resolve it?