Incorrectly formatted Json response is returned by analytics/service endpoint while running query

While running query using analytics/service endpoint, the response returned is an invalid json object (marked in red). In the below response a "," is missing after bufferCachePageReadCount key-value pair.

{
    "requestID": "fad40925-3f31-4dd5-9ccd-193dfb119db3",
    "clientContextID": "null",
    "signature":

,
    "results": [

]
    ,
    "plans":{},
    "status": "success",
    "metrics": {
        "elapsedTime": "1089.845008814s",
        "executionTime": "1089.827012334s",
        "compileTime": "36.911005ms",
        "queueWaitTime": "0ns",
        "resultCount": 1,
        "resultSize": 23,
        "processedObjects": 262144000,
        "bufferCacheHitRatio": "73.71%",
        "bufferCachePageReadCount": 4341906
        "remoteStorageRequestsCount": 47696,
        "remoteStoragePagesReadCount": 998628,
        "remoteStoragePagesPersistedCount": 998628,
    }
}