Webmaps don't load settings

daarias331 — Thu, 09 Oct 2025 00:36:36 GMT

Good morning ESRI community,

I am reaching out to you because I am having issues with a lot of my webmaps in my arcgis Enterprise 11.4. We have a federated deployment with ArcGIS Server. Here is a more detailed description of the behaviour and what we have tried:

Problem description

The Settings page of many existing web maps on the spatial portal has become inaccessible. This are the settings inside the item (next to "Overview"). When attempting to access the settings page via the portal user interface or the URL, it gets stuck on the load screen:

Issue has occurred previously and was resolved at that time by restarting the server where the federated arcgis server is hosted

Inspected Chrome dev tools console and displays 3 errors:
The first 2 errors (“syntaxError” and “code:403”) occur after opening the item in the portal. The last error (“Uncaught (in promise) TypeError”) occurs after trying to open the Settings of the item

What we have tried

Restarted the Portal server

Restarted the ArcGIS Server server

Restarted all three servers associated with ArcGIS Enterprise in sequence 15mins apart (geodatabase SQL server, ArcGIS server, and portal server)

Tried accessing the web map via different user account, including the account that owns the items. Still not accessible.

Clear browser cache
Open portal in Private or Incognito tab

Tried reindexing the portal (Full)

Tried saving a copy of one of the broken web maps and progressively removing layers and resaving. Eventually got down to 0 layers on the map and it was still not loading the settings page. Suggests that the issue is not related to content within the web maps.

Created a manual copy of the webmap, adding each layer progressively. This one does actually work. Confirms that the issue is not on the layers within the maps, but something else.
Compared all item files for a similar working and non-working web map. Could not identify any significant difference or cause of the issue in the files.
Tried validating the JSON files in item files using python. Didn’t detect any errors.
Tried accessing the content of the settings page (of a broken web map) using ArcGIS Python API to try and detect errors or corruption. The content returned without any errors.
I inspected the ArcGIS Server logs for a faulty and a working webmap:
Inspected Arcgis Server logs in DEBUG mode:
For both faulty and working webmaps I keep getting a 403 error for each layer in them. This is one example of only one layer:
Exception in authorize Token Required A request was made for service 'Reference/Water_Points_Natural_editing.MapServer' but it did not have adequate credentials. /arcgis/rest/services/Reference/Infrastructure_Points_editing/FeatureServer/0 Exception in authorize Token Required GetServiceInFederatedMode returned null. Error 403.
A request was made for service 'Reference/Water_Points_Natural_editing.MapServer' but it did not have adequate credentials. /arcgis/rest/services/Reference/Infrastructure_Points_editing/FeatureServer/0 Exception in authorize Token Required GetServiceInFederatedMode returned null. Error 403. /arcgis/rest/services/Reference/Water_Infrastructure_Points_editing/FeatureServer/2
However, this only translates into an error in the faulty maps when inspecting the devtools in chrome. Thus, it is possible that a good webmap somehow manages this gracefully, while the faulty ones have some sort of corrupted file (maybe a JSON as suggested by chrome devtools console)

Some additional info:

The faulty webmaps were created about 2 years ago, and they all have offline areas associated with them. They had not displayed this behaviour before, and are still accessible when you visualise them in mapviewer.

Re: Webmaps don't load settings

daarias331 — Mon, 13 Oct 2025 03:13:16 GMT

Following this up:

We realised that if we open the map in map viewer classic and then save it (without doing any change), then the settings become accessible again.

There is still the weird "Unexpected end of JSON " along the 403 error message when we open the item

Later, following the advice of the main solution here Solved: Manage Offline Areas button grayed out on map sett... - Esri Community, I unshared the item from a group designed to give access to external contractors

This got rid of the "Unexpected end of JSON input" and the 403 error message.

topic Re: Webmaps don't load settings in ArcGIS Enterprise Portal Questions

Webmaps don't load settings

Re: Webmaps don't load settings