I can see that it works on the second page, right?
But on the page that it’s not working, is this an archive page? If yes, can you try to enable “Is Main Query (Archive, Search)” option in your query loop?
what is the URL of the page, where other loops disappear? Can you record a video of your issue, including a configuration that you have for query loop?
Note: If you have “Is main query (Archive, Search)” enabled, it should be enabled only on one loop.
I’ve checked your website, and it seems that it works now. So, I suspect you probably enabled “Disable query merge”, as it was suggested over the email.