I have a feature layer that was created by adding a URL to an ArcGIS web service, it works just fine. The problem is I would like to change the source URL for the layer. This would seem easy to do using the ArcGIS Assistant by editing the JSON “sourceUrl” with the new URL. When I edit and save the, the message, “Saved!” shows up. Upon refreshing the page, I notice that the “sourceUrl” has been changed back to the original url thus not actually saving. Just curious if anybody else has dealt with this and if there is a possible workaround. The object of this is to change the source URL without changing the REST endpoint URL on the ArcGIS Online side of things.