The Images on this page match the excel document
https://gems.umn.edu/gems-exchange-apis 

It also matches the pages linked to that accordion (button)
https://gems.umn.edu/apis/land-cover

I added a fix on DEV and its working. I will now request that it gets taken live by the Drupal team then we can ask Gems to test again :)

Thanks David  ! For reference, the person we ask to test is someone called Lara - she is someone who lives in Cape Town and does this work for us adhoc - she works in travel which is how we know her - she does the SEO audits (technical and keyword ) for us adhoc on a contract basis as and when needed. When we need this work including the check after the fact, its Lara that does it for us (not GEMS or other clients) 

Okay thank you I will keep that in mind :)

The pages with these images are now live: 
https://gems.umn.edu/gems-exchange-apis. 

I will close this ticket for now because we don't know if these images are on other pages as well. Only the site crawl will be able to accurately tell us