Let me see if I can be more specific. This is what I did when it worked. First, I clicked on the icon in the upper right that looks like a mountain range with the sun on the left. It is four icons to the left of the smily face.
Then, I opened a new tab in the browser and went to the profile where the image was. Then I clicked on the "image" tab to display all the images on the profile. After that, I clicked on the image itself. Finally, the URL appeared that had the .jpg at the end. This is the URL that you have to copy and paste into the box that appears when you clicked on the mountain range. I hope this provides better clarity.