When the theme component below is enabled and you quickly scroll down, the topic header gets decoupled for a brief moment. I’m not sure if I explain it correctly. If a screencast is needed, let me know. Is it fine to report it here? Or should it be a bug report?
Also, as an admin I can select multiple threads to do e.g. a bulk action, such as unlisting items. But when I’ve selected a few threads, the bulk action menu does not show up. Using the Desktop mode.