Solved: How can I display images from SharePoint Online Li...

Keep in mind that the Power BI service needs to be able to access your Sharepoint list in order to retrieve the images. Generally you do NOT want to give them that permission.

A workaround is to force the sharepoint connection through an On-premise gateway even though technically that is not necessary.

The best option would be to incorporate the images into your Power Query data source pull instead. There are articles that describehow to chop up images into 32K chunks, and then how to stitch them back together in Power BI visuals.