Hi,
the resizing of images only works proportionally. This problem exists in all image dialogs. (When uploading / in the file manager / when inserting images into articles). The resizing of the image is initially displayed correctly in the preview. However, when clicking on the "Apply" button, the image is then resized proportionally to the smallest of the height and width values.
We use JCE Pro 2.9.63 on Joomla! 5.0.3
The problem occurs in different browsers.
Best regards