Heltec v3 + MQTT

Can anyone tell me if there is a known problem with either Heltec v3 units and configuring MQTT on that platform? I’m running firmware 2.4.1.394e0e1 on two different units with the same result. These are connected to 2.4 GHz WiFi which works fine. I can config the nodes, send messages, etc. However if I try to do anything with the MQTT module, literally nothing happens.

Ultimately I am trying to connect them to a local/custom MQTT broker but I’ve even tried setting up the default MQTT system. I am completely unable to configure or enable the MQTT module using the web interface or the Python/meshtastic cli.

I’ve tried issuing commands one-by-one as well as adding the configuration from a .yml file with no luck. Regardless of anything I set, nothing about this part of the config will change:

Module preferences: {
  "mqtt": {
    "address": "mqtt.meshtastic.org",
    "username": "meshdev",
    "password": "large4cats",
    "encryptionEnabled": true,
    "root": "msh/US",
    "enabled": false,
    "jsonEnabled": false,
    "tlsEnabled": false,
    "proxyToClientEnabled": false,
    "mapReportingEnabled": false
  },

I can’t even get it to flip “enable” to true, not modifying anything else. Thoughts or assistance?