I am using a Sony PS Eye for my mic. I recently installed Hotword and MK2. All modules disappear after some time besides currentWeather. I looked through the console from chromium and found this:

AssistantMk2 / HotWord
module.js:154 calendar received a module notification: HOTWORD_PAUSE from sender: MMM-AssistantMk2
module.js:154 MMM-NetworkScanner received a module notification: HOTWORD_PAUSE from sender: MMM-AssistantMk2
module.js:205 alert is resumed.
module.js:205 updatenotification is resumed.
main.js:275 Will not show updatenotification. LockStrings active: module_4_MMM-iFrame-Ping
module.js:205 clock is resumed.
module.js:205 calendar is resumed.
module.js:205 currentweather is resumed.
module.js:205 MMM-NetworkScanner is resumed.
module.js:205 mmm-nest-status is resumed.
module.js:205 MMM-Hotword is resumed.
module.js:205 MMM-AssistantMk2 is resumed.
module.js:154 clock received a module notification: HOTWORD_LISTENING from sender: MMM-Hotword

Then some time more later

alert is suspended.
module.js:198 MMM-Hotword is suspended.
module.js:198 updatenotification is suspended.
module.js:198 clock is suspended.
module.js:198 calendar is suspended.
module.js:198 currentweather is suspended.
module.js:198 MMM-NetworkScanner is suspended.
module.js:198 mmm-nest-status is suspended.
module.js:198 MMM-AssistantMk2 is suspended.

CurrentWeather eventually resumes and remains the only module. If I call HotWord and give it a command all the modules resume.

Full Log from the console can be seen here:

https://pastebin.com/xCw9J4W2

My Module Config:

//Hotword Module
{
    module: "MMM-Hotword",
    config: {
      record: {
        recordProgram : "arecord",  
        device        : "plughw:1",
      },
      autostart:true,
      onDetected: {
        notification: function (payload) {
          return "ASSISTANT_ACTIVATE"
        },
        payload: function (payload){
          return {
            profile: payload.hotword
          }
        }
      },
    },
  },

//Google Assistant 2
{
		module: "MMM-AssistantMk2",
		position: "bottom_bar",
		config: {
		record: {
        recordProgram : "arecord",  
        device        : "plughw:1",
      },
	screenDuration: 5000,
      notifications: {
        ASSISTANT_ACTIVATED: "HOTWORD_PAUSE",
        ASSISTANT_DEACTIVATED: "HOTWORD_RESUME",
      },
deviceLocation: {
      coordinates: { // set the latitude and longitude of the device to get localized information like weather or time. (ref. mygeoposition.com)
        latitude: 00.8, // -90.0 - +90.0
        longitude: -00.667821, // -180.0 - +180.0
      },
    },
                
}
},

Any insight would be helpful.
MagicMirror 2 v 2.6.0
All Modules Updated

@bachoo786 say “smart mirror” or “snowboy”

You can also read more on the .umdl and how to obtain a custom .umdl here:
snowboy.kitt.ai

More particularly:
http://docs.kitt.ai/snowboy/#api-v1-train

@leej00
Testing this now to see if I get the same results.

@makepluscode
Can confirm all modules disappear besides the default weather module.

I have a YouTube playlist playing, and I can still hear the module playing through the speakers, but visually it is no longer there.

If I give it a keyword voice command it is listening for it will draw the modules again.

Another observation is every time I give it a voice command it starts my playlist from the top.

A few things you can do:

Add your location inside the config.js under the module call. You can find this info inside the CONFIGURATION.md
i.e.
// — ESSENTIALS / modifying for your environment might be needed.

Use: https://www.mapdevelopers.com/geocode_tool.php

deviceLocation: {
  coordinates: { // set the latitude and longitude of the device to get localized information like weather or time. (ref. mygeoposition.com)
    latitude: 00.0, // -90.0 - +90.0
    longitude: -00.00, // -180.0 - +180.0
  },
},

With MMM-Hotword, using USB mic (plughw:1) you need to use the following:

//Hotword Module
{
    module: "MMM-Hotword",
    config: {
      record: {
        recordProgram : "arecord",  
        device        : "plughw:1",
      },
      autostart:true,
      onDetected: {
        notification: function (payload) {
          return "ASSISTANT_ACTIVATE"
        },
        payload: function (payload){
          return {
            profile: payload.hotword
          }
        }
      },
    },
  },
{
		module: "MMM-AssistantMk2",
		position: "bottom_bar",
		config: {
		record: {
        recordProgram : "arecord",  
        device        : "plughw:1",
      },

      notifications: {
        ASSISTANT_ACTIVATED: "HOTWORD_PAUSE",
        ASSISTANT_DEACTIVATED: "HOTWORD_RESUME",
      },
deviceLocation: {
      coordinates: { // set the latitude and longitude of the device to get localized information like weather or time. (ref. mygeoposition.com)
        latitude: 00.00, // -90.0 - +90.0
        longitude: -00.00, // -180.0 - +180.0
      },
    },
                
}
},
 

It works. Thank You! I am using the PS Eye as suggested in other forms. My audio out is still set to HDMI because im staging on my TV.

LPT: Add the following to the MK2 module config so the screens dont toggle so fast:

screenDuration: 5000, //this is milliseconds

Wow this is a great tutorial, and video. I am going to add this to my mirror. Can I ask where you got your USB mic and speaker combo from?

I especially liked how you showed the troubleshooting, and corrections in your video. So many people edit out the hurdles. Kudos to you my friend! A++

I was struggling with a crash. I logged the mem usage with SAR

sudo apt-get install sysstat

View Info Here

Then I output to a log every few minutes so if it did crash I could go back through.

sar -r 1 > somefile.log

The exact issue I was having was with an iFrame Module iFrame-Ping:

MMM-iFramePing

I run a YouTube Playlist - that will eventually bring up the module by voice command.

//iFrame Module - Contains Fox News Playlist on YouTube - Autoplay - Modest Branding (no logo) - iv Load Policy = 3 (no annotations) - Controls = 0 (no controls shown)
{
		module: 'MMM-iFrame-Ping',
		position: 'top_right',
		config: {
		url: "https://www.youtube.com/embed/?listType=playlist&list=PLlTLHnxSVuIyeEZPBIQF_krewJkY2JSwi&index=-1&autoplay=1&modestbranding=1&iv_load_policy=3&controls=0",
		autoRefresh: true,
		updateInterval: 120,
		width: "560px",
		height: "340px",
		scrolling: "no"
}
},

The iFrame video was crashing the PI so I decided to increase the swapfile size. Before I increased the size my PI would make it about 2-4 hours. Now I can literally run it for days without an issue.

sudo nano /etc/dphys-swapfile

Change CONF_SWAPSIZE=100

CONF_SWAPSIZE=1024

Stop/Start the Service

sudo /etc/init.d/dphys-swapfile stop
sudo /etc/init.d/dphys-swapfile start

You can log with SAR or just do

free -m

Some people set the swapfile to 0, but others warn against it. If you want to

CONF_SWAPSIZE=0