I'm experiencing an unexpected behavior in Field Maps. Here's the situation:
I published a hosted feature layer from ArcGIS Pro to ArcGIS Online. I added the feature layer to a web map in the new map viewer and then configured the web map in the Field Maps app as I needed it. Up to this point, no issue. After inspecting the map in Field Maps, I noticed one of my fields was populated with data that I did not want. I opened my feature layer on AGOL, navigated to the 'Data' tab, switched to the 'Fields' view, and deleted the erroneous field. I re-created the field with the same name, so I'd have a nice <null> value in the whole column. I re-opened the Field Maps online app, added my new field to the smart form, and re-generated all my offline map areas to make sure my change would be recognized offline.
Here was the 'gotcha'. When I re-downloaded my map on my tablet, the symbology of my feature layer had been overwritten. This was a surprise, because the attribute that I deleted and re-added was not referenced by my symbology properties and I did not re-open the web map to change symbology after making the schema edit. I re-opened my map in the web viewer on AGOL and, sure enough, the symbology was not as I left it.
What's going on here? Is this a bug? I have a bad feeling it has something to do with a discrepancy between the new map viewer and the visualization tab of the feature layer (even though I didn't even open the visualization tab), but this is a wild guess.
