An EventBridge rule matches no events after the producer changes a nested field name. The target works when called manually. Which correction should be investigated first?

1. Add a random rule tag and assume it changes payload matching.
2. Treat a manually successful target invocation as proof the complete event path works.
3. Increase only target CPU because every missing event is a compute bottleneck.
4. Compare the actual event schema with the rule pattern and test representative matching cases.