Why are my uploads failing?

This is almost always caused by one of the following issues:

• Your "custom/uploads" and/or "admin/sd-system/attachments" folders are not writable. Set permissions to "777" on both and try again.
• The file type you are uploading is not a permitted file extension. Edit permitted extensions from "Integration > Options > Allowed Upload Extensions?".
• Confirm with your web host that:
• Your server's allowed file upload size setting is high enough for the size of the files you are trying to upload (setting = "upload_max_filesize")
• The temp upload directory is set in php.ini (setting = "upload_tmp_dir")
• modSecurity is allowing uploads