Black lines on generated user avatar images

Nextcloud version: 25.0.3
Operating system and version: Ubuntu 22.04
Apache version: Apache 2.4.55
PHP version: 8.2


since the upgrade to Nextcloud Hub (NC 23), black lines are displayed on the top and left side of the generated user avatars (see screenshot). The problem also exists for newly created users. The lines are also visible in the uncropped state. It seems like the image is created with the lines and not correctly cropped in the avatar.

Is there a possibility to define the circular cutout of the avatars or to create the images again without lines?



This is tracked at but sadly without a solution yet

Thank you for the link. I guess we have to wait for a fix.