RDS Graph [No data],But Json Data can return

[magnetogit]

Help me please
Json Data return Below ,But RDS graph [No data]

root@xxxx:/opt/zabbix/cloudwatch# /opt/zabbix/cloudwatch/cron.d/cron.RDS.sh "xxxxxx" "xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com" "localhost" "aws_account_1" "ap-southeast-1"
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 12151499.4, 'key': u'RDS.BinLogDiskUsage.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 13.745, 'key': u'RDS.CPUUtilization.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 3.4, 'key': u'RDS.DatabaseConnections.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 0.37352823270672225, 'key': u'RDS.DiskQueueDepth.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 157339648.0, 'key': u'RDS.FreeableMemory.Minimum', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 81383927808.0, 'key': u'RDS.FreeStorageSpace.Minimum', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 0, 'key': u'RDS.ReplicaLag.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 62583603.2, 'key': u'RDS.SwapUsage.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 0.8000537492719946, 'key': u'RDS.ReadIOPS.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 287.7268591888593, 'key': u'RDS.WriteIOPS.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 0.0010479477124183006, 'key': u'RDS.ReadLatency.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 0.0013828101671950967, 'key': u'RDS.WriteLatency.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 9393.58107745714, 'key': u'RDS.ReadThroughput.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 3034772.928814686, 'key': u'RDS.WriteThroughput.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 21776.359648373196, 'key': u'RDS.NetworkReceiveThroughput.Average', 'clock': 1509282120}
{'host': 'xxxxxx.clzmdeoafdm1.ap-southeast-1.rds.amazonaws.com', 'value': 31777.87956107002, 'key': u'RDS.NetworkTransmitThroughput.Average', 'clock': 1509282120}