Alex, been a long time and I hope you’re doing well. I’m having an issue that may correlate to the dreaded “&” on our subsite not being encoded correctly to %26 on my browser. DFFS works fine on other lists, but when I try to install it to a new list on that subsite, I don’t get a button but instead get “URL is not for this web.” I notice, that if I switch the site base url out of the subsite with the “&” to the parent site, I don’t have issues installing to a list. As a heads up, we have recently updated to a new version of SP SE but only using Classic pages, but I don’t think that’s an issue. I wanted to get your take and see if you have any suggestions. I’m currently Classic DFFS from 8/12/2024.