I recently updated several sites running Magento CE 220.127.116.11 to 18.104.22.168. I noticed that product images (when uploaded now) are no longer visible in the backend - though they are visible on the frontend.
It seems like this is related to the new security patch.
Is there a way I can resolve this? Changing the permissions on the file from 640 to 644 / 777 makes them visible.