Unable to change styles on a Feature Layer in a web map

Trippetoe

Hello.

I have added a Feature Layer to my AGOL content.  I used the 'Add Item' tool to add an ArcGIS Server web service from the web.

I was able to add the feature layer to a web map, but i cannot change the style of the feature layer. When i click on the 'Change Style' tool, the dialog below opens up abd there are no options in the 'Choose an attribute to show' drop down.  

If i click on the 'Options' button, a dojo error is throw and the page freezes up 

Interestingly, i can add the Feature Layer to a map in an ArcGIS Pro project and change the style without any problems. When I share the ArcGIS Pro map as a web map, it is published as expected but the style is reverted back, i.e. the feature layer loses the style set in Pro.

Any thoughts on what's going on.

Trippetoe

Hi Kelly.

We ended up deleting the service and re-publishing it. That process seemed to fix whatever the problem was because we can now change styles.