Hi,
With some PNG images (not all...), the ImageEditor (ezie) gives me an error when i use any function of the imageeditor

The image is not loaded because of a server error.

Steps to reproduce

– Create an article with image included in attach
– Edit the image using image editor
– Click on "crop" function on left panel (for example) and select part of the image
– Press "crop" button on right panel

The error happens when pressing the "crop" button

Note: This only happens when i have "imagemagick:->enabled: true" in ezpublish.yml file. If i have it set to false, the error don't happen.