Images that have been modified using "image style" do not render. Additionally, the preview thumbnail in the image field doesn't show up as it is supposed to.
Images uploaded using the image field render in their original form.
I've got a basic installation running on MAMP. I'm getting no error messages. I've tried clearing all caches and checking file permissions indirectly by going to admin/configuration/file system and then clicking "save configuration".
I'm not sure what else to try. Any help with this is greatly appreciated.