Info section thumbnail pictures not showing up

I know this might sound silly and superficial. But certain thumbnail pictures under my info section. I went to add Johnny Appleseed to my list of inspirational people and at first it showed his linked picture from Facebook. But when saving it, it is the grey white no picture image.

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Similarly one day I added Yog-Sothothery to my interests. Yog-sothothery is the tongue in cheek nickname H.P. Lovecraft had for his famous Cthulhu mythos. I specifically wanted Yog-sothothery,and was delighted when it kept the term, and displayed a nice Cthulhu pic. It also redirected to the Cthulhu mythos wikipedia page which I did not mind.

But just a few days ago the Yog-Sothothery picture is now ugly and blank like before.

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