[Plugin: Simple Image Sizes] Image source pointing to wrong file after regenerating

After regenerating all media using this plugin, when I invoked wp_get_attachment_image_src() the src would still point to the incorrect file (even though the width and height parameters would say the new sizes).
I then used the regenerate thumbnails plugin and it worked fine.
Thought you should know…

http://wordpress.org/extend/plugins/simple-image-sizes/