Another issue, I've tried troubleshooting and can't get working. On my development site here jonathanr127.sg-host.com/
My {modules} instances aren't loading, as you can see.

System - Regular Labs - Modules Anywhere is published and up-to-date, v7.16.8

I tried turning on/off the core Content - Load Modules plugin does this conflict with Regular Labs?

In the backend article manager, the insert module button doesn't appear below the article editing space.

What am I missing here?

Oops, you can see the syntax errors on the livesite here
www.limitlessmindset.com/

Yes, I can assure you those tags are in the HTML output, as you can see at the header of this blog (feel free to use inspect element)
www.limitlessmindset.com/podcast/1320-q-a-39

All my modules embedded in articles were working fine previously.

What am I missing here? Do you want to jump into my admin?

Thanks for getting back to me. I use the syntax form {module Article Header}
thousands of places across my website and I cannot change them all. This syntax did work fine before.

I thought I installed and updated all the Regular Labs plugins but the insert module button does not appear below my articles, so I think I'm missing a plugin or setting.

Ah, this is a modules anywhere thing. I reinstalled it and it fixed the issue.

If I need further assistance with Modules Anywhere I'll purchase a license.

Have a great Sunday there!