Facebook has a habit of changing they way their photos are linked, which is why there are so many trip reports etc on here with the photos removed, which is why it's better to have them on sites like flickr, photobucket etc as the links always stay the same.
Didn't know that.
It was one of my things to do in 2017, get a flickr account. Will do it when I get a new camera. Compression on FB is terrible too.
Cheers Gaz.