Are you using a browser or the app?
If you are using the app, you may want to post on the iOS app board:
https://community.ebay.com/t5/iOS-App/bd-p/iosapp
Be sure to mention the version number of the app you are using, your operating system version and your device model if you know those. There are folks from eBay that read and respond to questions about the app that may be able to help.
Otherwise, can you tap an image to view the gallery of images, and reach the other images that way?
I have noticed that sometimes if images are slow to load, scrolling through the images does not work smoothly. Once the images have loaded completely, scrolling should work better. Using the gallery to choose images seems to be more reliable if scrolling is a problem.
