[BUG] Events are missing from S3 sink even with end-to-end acknowledgements

[dlvenable]

Describe the bug

We have a pipeline which appears to be losing events on the s3 sink. We see metrics that indicate a significant difference between s3.recordsIn.count and s3.s3SinkObjectsEventsSucceeded.count. However, I do not see any error logs.

To Reproduce

We do not yet have steps to reproduce.

Expected behavior

These metrics should align and all data should be in the S3 bucket.

Environment (please complete the following information):

Data Prepper 2.10.1

Additional context

This may be related to #5412. At the very least, that issue may be causing us to acknowledge the events even though they were not actually written.