Gallery doesn't show on some of the pages

Go to Flagallery Skins page and activate Minima skin.
You are using Midnight (old default) skin which is not supported anymore.
Minima skin is a new improved version of Midnight.

If you use “skin=default” parameter in your shortcodes change it to “skin=minima”.

You can delete Midnight skin after activating Minima skin.

Thank you for your advice. Sorry for my late response. I followed the instruction and updated to Minima skin. Deleted the Midnight skin. I am not sure how to do this advice <If you use “skin=default” parameter in your shortcodes change it to “skin=minima”.> Unfortunately still not showing on some of the pages. I looked at the way the pages are done trying to find a difference but to now success. This page works
while this and others don’t
. Any idea what may cause this strange behavior?
Thank you again.

There is some specific setting on your server which not escape double quotes in json_encode() function.

Try replace all “” (double quotes) in image descriptions and titles with ” (single quotes). For example replace:
<a href="https://finetunedstructures.com/selected-projects/">Revit</a> Structural Model
with
<a href='https://finetunedstructures.com/selected-projects/'>Revit</a> Structural Model

Thank you for the tip. Changing the program language is way beyond my amateur knowledge of basic WordPress editing. All the notes I put are simply text like in text editor. WordPress is applying the double ” or the template I use. Not sure. I played only with Lusail Catara Hotel which is the top left project on my selected project page. I remove all descriptions from all the images and then the gallery of that page appeared. Then I started putting the text back again. It let me put the text for the first three pictures. After that when I put the description text on the fourth picture the gallery disappeared again. I removed the text and it appeared. It looks like the text is the problem but why it is randomly picked I can’t figure it out and as much as I would like to do what you suggest I don’t even know where to do it. If you have any other tips I will greatly appreciate them. I am sorry I am not very helpful. If I use another skin can this bring simpler solution?