Hi,
i'm getting 403 on ALL images, even on their direct links in the browser. I raised the permissions to 777 for the whole /files directory, to no avail. The site's logo and Inline images in posts are not showing either. The links seem correct. Could there be some .htaccess tomfoolery happening?
Try this: https://forum.backdropcms.org/comment/6728#comment-6728