I'm having a bit of a problem with the External WP Images plugin. When importing using WP All Import and creating variable products, the product variation images are not working at all. On the backend it shows a dot, and on the frontend it just keeps "loading" and nothing happens. Is there something I could do to fix this?
External Images was designed for affiliate marketers really (those with 100,000+ products) – as such its focus is on the Featured Image. I have not tested it with Product Variations but if you can make the external_url field of the Product Variations exist then the thumbnail should pull correctly.
Let me know if this helps.