Spark Default Interpreter Setting Changed in interpreter.json not Reflected in UI

"2CC2YSMHR": {
      "id": "2CC2YSMHR",
      "name": "spark",
      "group": "spark",
      "properties": {
        "spark.executor.memory": "",
        "args": "",
        ...
        "zeppelin.R.cmd": "R"
      },
      "status": "READY",
      "interpreterGroup": [
        {
          "name": "pyspark",
          "class": "org.apache.zeppelin.spark.PySparkInterpreter",
          "defaultInterpreter": true,
          "editor": {
            "language": "python"
          }
        },
        {
          "name": "spark",
          "class": "org.apache.zeppelin.spark.SparkInterpreter",
          "defaultInterpreter": false,
          "editor": {
            "language": "scala"
          }
        },
        ...