Hello

I discovered a problem.
I use an external graphic library as : External ImageMagick 7.0.10-27 like below :


    Piwigo 2.10.2 Check for upgrade
    Operating system: WINNT
    PHP: 7.3.5 (Show info) [2020-08-18 11:38:00]
    MySQL: 5.5.5-10.3.9-MariaDB [2020-08-18 11:38:00]
    Graphics Library: External ImageMagick 7.0.10-27


But when I click on batch manager and generate multiple size images, it works correctly at the begining and then after few time, it doesn't work and my environment switches automaticaly with GD bundled as graphics library  like below :


    Piwigo 2.10.2 Check for upgrade
    Operating system: WINNT
    PHP: 7.3.5 (Show info) [2020-08-18 11:22:42]
    MySQL: 5.5.5-10.3.9-MariaDB [2020-08-18 11:22:42]
    Graphics Library: GD bundled (2.1.0 compatible)

Do you have any idea why ? and what can I do ?

Regards
Guillaume