Problems with reordering and scrolling image gallery on backend

HI @sophie.elizabeth, Thanks for posting about this issue. As long as your client is using a supported browser and the latest browser version available to her operating system, she shouldn't experience any issues while editing her site.  Since this issue may involve some troubleshooting and be specific to only some users, the best approach is to reach out to Squarespace Customer Support team directly for personalized assistance. With this, we will be closing this post.