Lambda Node 14 - Error: Missing AWS Lambda trace data for X-Ray. Expected _X_AMZN_TRACE_ID to be set

I am trying to set up some custom subsegments to gather timings of operations.

Code below:

```
const AWS = require('aws-sdk');
const AWSXRay = require('aws-xray-sdk');
const xmljs = require('xml-js');

const segment = AWSXRay.getSegment();

const self = {
handler: async (event, context) => {
try {
const xmlsegment = segment.addNewSubsegment('XML');
const data = xmljs.xml2js(event.body, {compact: true});
xmlsegment.close();
}
}

module.exports = self;
```

When hitting the API endpoint, I'm getting "Error: Missing AWS Lambda trace data for X-Ray. Expected _X_AMZN_TRACE_ID to be set" in the logs.

I am following the information here https://docs.aws.amazon.com/xray/latest/devguide/xray-sdk-nodejs-subsegments.html#xray-sdk-nodejs-subsegments-lambda

Start with the shown Lambda handler, especially AWSXRay.getSegment() and the custom subsegment creation, and compare its execution context with the linked AWS X-Ray Lambda subsegments documentation. Done means the endpoint creates and closes the XML subsegment without the missing _X_AMZN_TRACE_ID error.

Written by the indexing model from the issue text.