Issue with cb gallery after last updates

Hello.

I use cb gallery for years now and with the last updates (cb, gallery, etc) i am dealing with a problem that i can not figure out what is caused from.

When viewing the gallery thumbnails on activity stream or user profile page, everything is fine.

When you click on a thumbnail the page gets darker but the lightbox (used to view the full size image) does not load. Not even the loader of the lightbox.

Trying to find out why, i cleared the cache and clicked again on a gallery thumbnail. The lightbox worked only one time. Then it stopped working again.

Cleared cache again. Same problem! The lightbox worked only one time. Then it stopped working.

Can you please advise?

Joomla! Version: Joomla! 3.9.24 Stable
CB version: 2.4.7+build.2021.01.13.21.19.36.4c90345f9
PHP Version: 7.4.14

Thank you

Try disabling Joomla page cache if enabled and see if your issue persists. If it does persists press F12 to open your browsers developer tools and select the Console tab. Next click a gallery entry and cause your issue. See if there are any fatal errors (they'll be in red) in the console. If there are any errors please provide them. Sounds like the JS is failing for some reason.

Thank you for your reply Krileon.

Followed your recomendation. Disabled cache, cleared existing cache but still the problem is there.

As you suggested, here is the browser console report:

Region.jsm: Error fetching region TypeError: NetworkError when attempting to fetch resource. Region.jsm:374:11
_getRegion resource://gre/modules/Region.jsm:374

Region.jsm: Failed to fetch region Error: NO_RESULT
_getRegion resource://gre/modules/Region.jsm:376

Region.jsm:172:11
_fetchRegion resource://gre/modules/Region.jsm:172

Region.jsm: Error fetching region TypeError: NetworkError when attempting to fetch resource. Region.jsm:374:11
_getRegion resource://gre/modules/Region.jsm:374

Region.jsm: Failed to fetch region Error: NO_RESULT
_getRegion resource://gre/modules/Region.jsm:376

Region.jsm:172:11
_fetchRegion resource://gre/modules/Region.jsm:172

Region.jsm: Error fetching region TypeError: NetworkError when attempting to fetch resource. Region.jsm:374:11
_getRegion resource://gre/modules/Region.jsm:374

Region.jsm: Failed to fetch region Error: NO_RESULT
_getRegion resource://gre/modules/Region.jsm:376

Region.jsm:172:11
_fetchRegion resource://gre/modules/Region.jsm:172

Then there are a few warnings and a final error at the end

InvalidStateError: An attempt was made to use an object that is not, or is no longer, usable 36 PictureInPictureChild.jsm:298
handleEvent resource://gre/actors/PictureInPictureChild.jsm:298

Hope that this is what you asked

Thank you.

That looks like a browser error. What browser are you using and what version browser? What is the media type you're trying to open (picture, video, file, etc..)?

Tested on firefox and edge latest versions.

Both browsers same problem for images and videos.

Appears to be working fine in my tests. Are you able to confirm the issue exists for you on our demo site below?

demo.cbdemosites.com/demos/cb-gallery
demo.cbdemosites.com/demos/cb-gallery/cb-gallery-bot