Hi @mellisaha,
Sorry for a late reply! Are you still experience this issue of double images in the gallery? What images do you currently have in the feature image and gallery images? You can send a screenshot using https://snag.gy/ to add the shareable link to this thread.
Could you also copy/paste your system status report here?
Lastly, I would check if there’s any theme/plugin conflicts.
Let’s try a test. Please upload the plugin Health Check(https://www.ads-software.com/plugins/health-check/). It is a tool that can be useful for debugging. You can click the button to disable all plugins and change the theme for you while you’re logged in to that session without affecting normal visitors to your site.
Go to Dashboard > Health Check > Troubleshooting tab > Enable troubleshooting mode. You’ll be prompted at the top to activate a default theme. Please activate the Twenty Seventeen theme. Then, go to Plugins. You’ll see all plugins have been deactivated. Please activate only one – WooCommerce core.
If it shows correctly, then it’s a theme or plugin conflict. Reactivating each plugin one at a time, then see if the issue pops up again will tell us which plugin is conflicting.
Thanks!