AWS Lambda function not awaiting promises and returning immediately after invoking

Question

I have a function that returns and axios promise with the data that I need to work with. After getting the data from getUsersQA() function, I have a promise chain in order to promise the data and send the return message. The code works when I invoke the function using an event (Post Method). But when I setup this function with a scheduled cron on netlify serverless functions I am getting this output.

Feb 16, 02:55:01 AM: 2f35893d INFO   Fetching Users...
Feb 16, 02:55:01 AM: 2f35893d Duration: 94.40 ms    Memory Usage: 73 MB Init Duration: 370.93 ms    

Immediately upon invoking getUsersQA() the function is returning for some reason when it is invoked with an event the code works.

export async function handler(event: APIGatewayEvent, context: Context) {
  // Fetching Slack Users
  const users = await getSpaceUsers(client);

  // Fetching QA Data & Pushing Slack Message
  const period = computePeriods();
  let blocksContent: any[] = [];

  const qaData = await getUsersQA(period.lastMonth);
  for (const puser of qaData) {
    // FIREBASE LOGIC

    if (puser.avg_score < 85) {
      const block = userQAInfo(puser, users?.get(puser.email));
      blocksContent.push(block);
    }
  }

  try {
    // Call the chat.postMessage method using the WebClient
    const result = await client.chat.postMessage({
      channel: "",
      text: ``,
      blocks: blocksContent,
    });
    console.log(result);
    return {
      statusCode: 200,
    };
  } catch (error) {
    console.error(error);
    return {
      statusCode: 200,
    };
  }
}

module.exports.handler = schedule("*/5 * * * *", handler);

This is my getUSersQA asyn function.

export async function getUsersQA(period: string[]): Promise<playvoxUser[]> {
  return axios({})
    .then((response) => {
      let playvoxStats: playvoxUser[];
      playvoxStats = response.data.result;
      formatPlayvoxResponse(playvoxStats);
      let lowQAStats: playvoxUser[] = [];
      playvoxStats.forEach((user) => {
        user.avg_score =
          Math.round((user.avg_score + Number.EPSILON) * 100) / 100;
        lowQAStats.push(user);
      });
      return lowQAStats;
    })
    .catch((err) => {
      console.log("ERROR while fetching USERS");
      return err;
    });
}