AWS S3 upload randomly hangs when using JsonStreamStringify

[ckfngod]

I'm having an issue using this with the AWS SDK for S3 stream uploads where sometimes the upload will just hang without any errors. I don't see the same issue when using a regular Readable stream. Any ideas?

Packages:
json-stream-stringify@3.1.2
aws-sdk@2.1411.0

Usage:

await s3.upload({
  ACL: acl,
  Body: new JsonStreamStringify(object),
  Bucket: bucket,
  ContentType: contentType,
  Key: key,
})
.promise();