Exclamation [Q] Wallpaper Portrait Mode Doesn't Works?

Good Day,

I have a Samsung Galaxy Young GT-S5360, i recently tried to change my wallpaper when i am cropping the photo, the landscape mode works just fine, but i wanted to crop the wallpaper in portrait. but it just doesn't work. what is the error or reason why the portrait doesn't work? is there any fix to this problem?

Thanks for the help,