FYI, we deployed a workaround for this eBay API issue. Now when Auctiva imports a closed listing, we are getting the largest available image from ebay. So going forward listings created on ebay and imported into Auctiva will not require you to re-upload images. We are going to continue to work with eBay in hopes that they correct their API or at least extend it to allow us (and any caller) to request the original image size and not the 400px version they return to Auctiva today.
Again I want to apologize for any inconvenience this may have caused. If you have any issue with imported listings/images, please do not hesitate to post a message or reach out to support.