Hello

I wonder if anyone can help me, please?

I have been running a successful Piwigo instance for some time (6 years) with little or no trouble at all. I did a recent update to 16.4.0.

The site itself is working fine; however, yesterday I uploaded some new photos.

The progress bar completes, and I can then see the thumbnails in Global Mode, but the thumbnail is not available anywhere else, like single mode, and I certainly can't see the final full-size image. All I see is a grey triangle or broken image icon.

Here is a demo.. It's the CD Player image. https://derekjones.net/photos/index.php?/category/894 The image is in the carousel as a thumbnail.

If I FTP into the server, I can see the uploaded image, so it has uploaded; I can see a thumbnail in Global mode, but I can not see the image anywhere else.

I have no idea what has happened. I'm not a PHP expert, but I'm not afraid of using terminal... So any help would be appreciated.

I have thought about backing it all up, creating a new instance and re-uploading, starting from scratch, but I fear that the problem might follow.

Here is my current set-up:

Piwigo 16.4.0 Check for upgrade
Installed on 5 January 2022, 4 years 6 months ago
Operating system: Linux
PHP: 8.3.32 (Show info) [2026-07-06 06:33:14]
MySQL: 10.11.14-MariaDB-0+deb12u2 [2026-07-06 07:33:14]
Graphics Library: External ImageMagick 6.9.11-60
Cache size 2475.43 Mo   calculated 7 hours ago Refresh

Activated plugin list12
About 1 menu
AlwaysShowMetadata
Colored Tags
Contact 1 menu
Contact Form
Exif View
LocalFiles Editor
OpenStreetMap
Perso About
Perso Footer
Piwigo Failed Login logger
Read Metadata

I have cleared/purged all the caches in maintenance. I have also disabled all of my plugins to see if that helps. I have also checked permissions.

Piwigo URL: https://derekjones.net

Many thanks in advance.

Derek

Last edited by deljones (2026-07-06 11:47:06)