I have had a requirement to update a WP build so that the thumbnail size changes from (the default) 150x150 to 500x500.
I've amended the size within the
Settings > Media and utilised the awesome "Regenerate Thumbnails" plug-in to create the image files at the new sizes. So everything should be cool... alas not!
When I call my new image thumbnail
wp_get_attachment_image_src( get_post_thumbnail_id(get_the_ID()),'thumbnail'); Wordpress is still returning my image as
...150x150.jpg and not the new thumbnail size.
I've attempted updating the page/post in which the image appears but this doesn't seem to work. Any ideas?
Note: I am using a multi-site instance of Wordpress, but I've checked each instance to ensure that the images have been resized and that the settings have updated. Everything seems to be working correctly.