Why do I get the error "failed to read line: s3manager download failed: NoSuchKey: The specified key does not exist" on my S3 log source in Panther?

QUESTION

Why do I get the error "failed to read line: s3manager download failed: NoSuchKey: The specified key does not exist" on my S3 log source in Panther?

ANSWER

This error occurs when an object is uploaded to the S3 bucket and then immediately removed.