What does Attachment Unavailable mean on Messenger » ChuksGuide
The definition of the message, Attachment unavailable, could be either from a unavailable media be it audio, video, links, image or sticker; unsupported Messenger client. If a friend shares a photo, video or GIF from a website that was reported to be insecure, the contents will be blocked from them. Learn more about...
12 Mar 2018 ... The definition of the message, Attachment unavailable, could be ... you on Messenger sends a sticker that was not created by Facebook to you, ...