Upload zone failing

I am experiencing an issue with the upload zone scaling in Fancy Product Designer. I have set up two identical product templates – one in portrait (A-format) and one in landscape (A-format), with mirrored dimensions.

In the portrait format, the uploaded image correctly fills the entire height of the upload zone and allows customers to adjust the image horizontally, ensuring no white space appears in the final print.

However, in the landscape format, the upload zone does not extend fully to the top and bottom of the canvas. See here: https://plakattrykkeren.dk/vare/dit-foto-som-plakat-upload-selv-tvaerformat/

Even though the settings match the portrait version (only flipped to fit the landscape orientation), small gaps appear above and below the uploaded image as you see in the link.

Do you have any recommendations or fixes for ensuring that the upload zone fully covers the canvas in both formats, preventing any gaps?

See the difference in the attached screenshots.