I have an existing Web Map App where I 've already enabled editing for one layer and it functions. I added a new layer with full editing permissions to the map I use in this app. If I try to edit that App now, the Editing widget shows no editable layers at all (fortunately the editing still works for the earlier added layers). Adding the same map with editable layers to a new Web Map App no editable layers show up either.
I had the full list of editable layers earlier today in the same Web Map App and haven't done any changes. What has happened?