Field order is being sorted alphabetically in the popup configuration when a feature service is added to the New Map Viewer. Is there a way to make the map viewer honor the original field ordering as shown in the feature table?
Resorting the original order is problematic as field order is set to facilitate ease of data viewing or entry. Unfortunately, the caveat on the popup configuration mentions "Popups offered in map viewer are not compatible with all apps." This appears to be the same issue that @MarkEastwood experienced with his collector post. We are working on a configurable editing app which apparently does not honor new map viewer popup configurations. I tried using Experience Builder, assuming that the problem may be due to the underlying javascript api 3x/4x compatibility, but EB does not yet have an editing widget. It does not appear the popup reorder is honored in Field Maps either. Given this we are spending time to redo our work to use the Map Viewer Classic unless Esri has recommendations on using the new map viewer for editing wit original field order.