Review the “Time series graphs” Example dashboard in Grafana Play.
In the Time picker, I’ve selected “Previous fiscal quarter” on one and an “absolute time range” on another = both essentially between 1st January 2026 - 31st March 2026.
Screenshot as below:
But for some reason the chart / data are producing inconsistent results despite the time picker being the same?
I’ve noticed this first on our own data dashboard but surprised it’s replicable in Grafana Play.
Energy timeseries is random walk type = random values, so there will be different values every time you refresh panel/dashboard
Temperature and Pressure are generated from static list, so they look the same.
What is a problem?
The issue is due to the random data source the energy panel uses which generate random values on every refresh and the temperature and pressure uses the static list so they remain constant
But the other issues can be due to
1)Dashboard Timezone set to “Browser”
set a fixed timezone in Dashboards Settings ->General->Timezone
4)PromQL intervals which are hardcoded
don’t use [5m] instead use [$__rate_interval] because sometimes query doesn’t adapt to selected time range
Random walk didn’t cross my mind - 
