Why can't I adjust the symbology for an AGOL layer?

[BrianO_keefe]

I have a REST Service.

Layer: Road Closures (ID: 0) 

I built an AGOL Layer from it.

http://cityoftulsa.maps.arcgis.com/home/item.html?id=890d36b5d70d4199b22a867d9f927d1c#overview 

But now... for whatever reason... I can no longer adjust the Symbology (or Visualization) of that layer nor any layers built off of it.

In Chrome INSPECT I get the following:

Uncaught Error: dojox.data.AndOrWriteStore: Invalid item argument.
 at Object._assertIsItem (base.js:795)
 at Object.getValues (base.js:796)
 at Object.getValue (base.js:796)
 at Object.clean (arcgisonline.js:5249)
 at Object.<anonymous> (arcgisonline.js:9646)
 at dojo.js:44
 at Object.fetchItemByIdentity (base.js:809)
 at Object.getAttributeItem (arcgisonline.js:9646)
 at Object.updateUIWithRenderer (arcgisonline.js:9321)
 at Object._init (arcgisonline.js:9307)‍‍‍‍‍‍‍‍‍‍‍

I'm completely lost as to why it is doing this. I've tried changing owner, share level, etc. It's currently 100% public... I'm just lost.

[Anonymous User]

At first I was able to reproduce this. When I when into the change style no fields would display in the drop down. 

I just refreshed the page and I am now able to change the style. Did you make any changes to the layer?

[VHolubec]

Hello Katie,

were you able to find a source of the issue? I am struggling with similar one with pop-ups.

Thank you.