maybe query is wrong can you use the right measurement name ?
from(bucket: "VCENTER_BUCKET")
|> range(start: v.timeRangeStart, stop: v.timeRangeStop)
|> filter(fn: (r) => r["_measurement"] == "????????")
what is your version of grafana ?
you should look at this, i believe it’s a config issue
What is the bucket list you have on your first screen ? where are these buckets ?
look like measurement field to me.