Support local query greyed out when setting up local fullfilment

Hi guys,

I’m new here and I’m already hooked!

I followed this tutorial: Google Assistant - Home Assistant

I have DuckDNS and NGINX.

I grabbed the latest app.js from here as mentioned in the doc.

I can send commands from Google Assistant, sync my devices, etc but it fails ~50% of the time.

I wasn’t able to tick “support local query” as it’s greyed out for me:

Also from this link that someone posted on this forum, I see that my requests are going through the cloud, so local fulfillment isn’t working. (cloud monitoring dashboard, can’t put the link as new user)

How do I get to tick out the support local query box?