Gallery not visible in Chrome and Chromium

One of your plugins or your theme appears to be conflicting with the way tiled galleries are initialized via JavaScript.

Could you try to deactivate each one of your plugins, one at a time, and let me know if you find a conflict with a specific plugin?

If that doesn’t help, could you try to switch to one of the default themes, like Twenty Fifteen, for a few minutes, and see if the problem remains?

Let me know how it goes.

Tried these:
1. changed theme to Twenty Sixteen, it appears and then disappears.

2. I disabled one by one, all plugins. Even renamed the folder to make sure none of them remains active even shown inactive (happened some years ago, not sure it still happens, but I wanted to make sure). Still not working.

3. Now I want to make things back as they were with my Tiled Gallery from Jetpack and cannot activate Jetpack, my host blocks xmlrpc.php and I have to workaround if possible; I did this before, but now I can’t make it. I find myself blocked for now, it is a mess. I have no plugin active – no contact form working, no galleries, lots of my site functionalities are inactive; bummer.

I found the culprit: there was a <strong> tag opened and not closed in the beginning of the post. It is incredible I worked a lot to only discover this. Anyways, Jetpack tiled galleries maybe should not be so sensitive.

Nice catch! I’ll keep that in mind for future reports like yours, and we’ll see if we can do something to help with problems like those.

Yes, as I could not find any plugin conflict or theme conflict, I had a look at my code. It was a lucky guess, but I was right. You should fix the code parsing algorithm, a missing tag (actually a </tag>) should not break the page.