Serverless Offline not detecting routes?

Serverless Framework
1

Hi,
I am new to serverless and am trying to use the serverless-offline plugin but I cannot seem to get it to load my routes.
Here is my serverless.yml file:

service: cwc-sls
plugins:
  - serverless-offline
provider:
  name: aws
  runtime: nodejs12.x
functions:
  hello:
    handler: handler.hello
    events:
      - http:
        path: /hello
        method: get

It’s basically the initial project with serverless-offline added to it. Here is the handler code:

'use strict';

module.exports.hello = async event => {
  return {
    statusCode: 200,
    body: JSON.stringify(
      {
        message: 'Go Serverless v1.0! Your function executed successfully!',
        input: event,
      },
      null,
      2
    ),
  };

  // Use this code if you don't use the http event with the LAMBDA-PROXY integration
  // return { message: 'Go Serverless v1.0! Your function executed successfully!', event };
};

Again, the basic code.
I run sls offline start and it fires up, though I do notice that serverless-offline defaults to :3002 and not :3000 and also ignored flags like httpPort 8080. When I make a get request to http://localhost:3002/hello, I get a 404 error.
Has anybody experienced this before or has advice as to how to solve this?

Thanks