Hello @Seller_cUCt5hkthK2H4,

Thanks for posting to the Forums. I have written a post about images that may be helpful for you: Listings Lounge: Prime Day Prep - Picture Perfect Image Practices to Attract Customers

If you have reviewed the above and still run into any issues with this, I'd recommend contacting Support, so they can help troubleshoot why your image upload isn't updating.

Have a great day!

- Manny