Explanation of error code APNX-1-4205-003

Peter, can you please post the complete error message along with a snippet of the log from the application server from the time you see this error? That information should be more helpful to debug this issue.

The complete error message is not very useful: "An error occurred while retrieving the data for “FIPP Permit”. (APNX-1-4205-003)"
There is nothing in the log close to the time of the error. Do you have a description for this error code?

Are you using a query rule? Where is the data retrieved from? If you're using QR, ensure that the Query rule and the data store has the correct permission set for the user (at least viewer privilege) so the sercurity allows the info to be queried.

This is not really helpful - I simply want a description for the error code. For what its worth, ,no, its not a QR, its a record listview expression that derives information from a publicly available REST web service. The REST call works just fine in a browser and previously worked in Appian.

I assume you're using the SendHTTP smart service. If so, try enabling logging for this smart service and see if you get an error message in the log file

I got the same error when I updated my List View. It was because I didn't surround the Facet label and Option label values with double quotes.

It wasn't easy to find the problem because I was used to the behavior on Forms, where if there is an expression editor option you can still enter text directly (for example on the Form Title).

The error message could be more informative, however. It was finally this page that explained the issue:
forum.appian.com/.../Record_Design

...where it says:
Initial Option Label: Expression that defines the name of the first facet option displayed to end users. For example, "North America" displays as North America.