I am completely stumped. I was pleased to be able to update attribute data for a data set stored in ArcGIS Online using the Field Map App while being onsite. However, it appears that not all the data is treated the same. Using the same app to edit the same data set that was originally created at the same time, I am able to edit one data point but not able to edit a second data point using the same keystrokes. When I press the Update button, the feedback I get is “Unable to Submit.” Does anyone have an idea of what might be causing this?