Is this “stock” Connections and cMap? Meaning, are they as supplied and not edited in any way?
It is odd because the link anchor for the image is being used for the image src instead of just the URL of the image. I was not able to duplicate this on my test site.
If no edits have been done to Connections or cMap, please create a temp admin account using this plugin:
Reply back, as a private reply, with the login link and I’ll take a closer look.