Meteor1.3 + React - Materialize SideNav Not Subscribing

I was banging my head going through again and again for a typo why my list is not showing up in my SideNav (a Materialize CSS component). Then I took the same subscription code to my home page and console logged it and now I get the array of objects in console. Before when I tested on SideNav component, it was just empty array.

I’m using TrackerReact, whatever the latest version is, why is this happening? And how do I fix it?

import React, {Component} from 'react';
import TrackerReact from 'meteor/ultimatejs:tracker-react';

export default class Home extends TrackerReact(Component) {
  constructor() {
    super();
    this.state = {
      subscription: {
        userList: Meteor.subscribe('userList')
      }
    }
  }

  componentWillUnmount() {
    this.state.subscription.userList.stop();
  }

  userList() {
    return List.find().fetch();
  }

  render() {
    console.log(this.userList());
    return (
      <div>
        <h4>Home</h4>
      </div>
    );
  }
}

Above is the working one. The not working one is the exact same except it’s placed in a SideNav component.

Show not working code. Or at least link to SideNav component code.