CloudKit Dashboard error "Failed to execute query"

Something has caused my CloudKit queries to fail. On the dashboard I get an error message "Failed to execute query" when I try to "SORT BY" a field. The field is listed under Indexes as "sortable". For a different field, when I enter the field under "FILTER BY", and before I tap "Query", I get "No results". That field is listed under the Indexes as "queryable".

It used to work fine.

I have described this further, with screenshots at FB16114560

and the log entry is

"time":"12/19/2024, 9:56:24 PM UTC" "database":"PUBLIC" "userId":"_660263174f32e1ebf765680c575f46fb" "operationType":"RecordQuery" "platform":"Other" "overallStatus":"SERVER_ERROR" "error":"INTERNAL_ERROR" "requestId":"703a4ba8-8b62-4eb2-8060-efa09a914ee2" "executionTimeMs":"2749" "interfaceType":"WEB" }

CloudKit Dashboard error "Failed to execute query"
 
 
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