If you add an image from facebook, they usually have keys which expire within a short period of time. So the best way to avoid this is by uploading the images to a site like imgur, or adding them as an attachment to the post.


If you click on reply to a post, rather than using the quick reply box, you'll see the attachment bar. Drag an image on there, then click on upload and you'll see this

Image8.jpg

click on insert, which you can see next to upload, and Bob's your uncle, it will be added into your post.

If you don't click insert, the image will be added as a clickable thumbnail at the end of the post.