I tried three different pictures didn’t work
Thanks for your note and sorry for the trouble with this. We’re currently tracking a bug where updating profile pictures does not work in Chrome or Firefox and we should hopefully have a fix in place soon. In the meantime, if you’re on Windows you can use Internet Explorer to do this, or if you’re on a Mac you can use Safari. Both of those browsers seem to be updating the profile picture without issue.
If you continue to have problems, you can email us at firstname.lastname@example.org with the image that you’d like to use, and we’ll go ahead and update it for you.