Grafana influxdb report

HI Team,

I am using grafana, telegraf and influxdb for my production environment for data analysis. Its almost collecting different performance metrices from 1000 plus nodes for last 2 years. Recently i saw some anomaly when i generate report from a table panel in grafana. Sometimes the report shows different data when my customer generate same report with same time interval at different time of the day. Any one faced this issue? Does this occur becs my influxdb is not responding properly for the query?

Kind Regards,
Munna Thampi