Thank you for your answer. I allready disabled al the plugins. Same result.

I tried the extra line in the config file. Restarted the Linux server. Still the same.

After that I tried to add a new gallery with photo's. I can make the galley and a album. Uploading is going well but no photo's are showing in the album.

I updated to the newest version. No change. What I did see is that on the iPhone application the photo's are visible but not in the browser. I used Internet exploror, Firofox and Chrome.

I also tried to downgrade Piwigo but that didn't work.

So before the upgrade to 11.x no problems. After the update not photo, only movies.

Thank you all for thinking with me.

Hi,
Looking closer in debbuging mode (Firefox + [F12] > network, or console (XHR on) ), I can see XHR reply to failed request like https://feeks.dhs.org/piwigo/i.php?/upl … xload=true
The reply is

[External ImageMagick] Corrupt image array ( )

When I download one of your picture, and drop it in my 11.3.0 gallery, there is no problem.
https://feeks.dhs.org/piwigo/picture.ph … -2020-9-21

May the problem comes form ImageMagick ?

My environment:
    Piwigo 11.3.0 Check for upgrade
    Operating system: Linux
    PHP: 7.3.26 (Show info) [2021-02-11 09:30:54]
    MySQL: 5.5.5-10.3.27-MariaDB [2021-02-11 10:30:54]
    Graphics Library: ImageMagick 7.0.10-55

phpinfo gives: imagick module version     3.4.4 (via (Show info) link)