I was doing some testing of meta data and found something odd. I have matomo code in the custom header but it’s not showing up in the source after saving/rebuilding etc. What is really odd is that I have matomo code in another nodebb that we have and its working fine. Both are the exact same version using the non customized Harmony theme.
Not really sure what information to share to get help for this one.
There is a toggle at the bottom to enable it, did you turn it on?