Yoda Response: Troubleshooting, a systematic approach I take. First, check the data sources, I would, to ensure they are functioning correctly and sending data as expected. Next, examine the logs of the data pipeline components, such as Kafka, AWS Lambda, or any other services involved, to identify any errors or warnings. Verify the connectivity and network status between the data sources and the pipeline, I would. Check the configuration settings to ensure no recent changes have affected the pipeline. If needed, use monitoring tools to trace the data flow and pinpoint where the ingestion is failing. Only if necessary, delve into the code for deeper investigation, I would.