I've duplicated a layer and have no problem viewing them online or on the Field Maps app. Once I go to download an offline area through the app I get a "download failed" message. I'm able to open and use offline areas created under the settings tab for the web map online in the Field Maps app. However, only the original layer that the duplicates were made from will appear in the offline area. Looking to see if there is a way to create duplicate layers that are viewable offline through the Field Maps app.