Why does crop array in add_image_size() does not work properly unless the featured image is again uploaded?
Like here is the code
<?php add_image_size('banner-image', 920, 210, array('center','center')); ?>
This works perfectly for the first time but when I change the above code to
<?php add_image_size('banner-image', 920, 210, array('left','top')); ?>
It does not work on normal or hard refresh but image is cropped to left top when the featured image is again uploaded.
Any solution for this without cropping the image when uploading...