add_image_size crop position not working

I’m trying to crop images on the main page of my wordpress blog so that the left top appears. However, no matter what I do they still appear centered. In my functions file I am using:

add_theme_support('post-thumbnails');
add_image_size('post-cartoon', 200, 200, array('left', 'top'));

I’ve also tried:

add_theme_support('post-thumbnails');
add_image_size('post-cartoon', 200, 200, array('left', 'top'), true);

and I’ve tried regenerating all my images. I’m stomped as to why it is now working. Can anyone help. An example of the problem can be seen here: https://www.invadingholland.com in my top two posts (the others use images that are already made to size).

Thanks