Time Series Format and Group by Transformation

I am trying to group these fields using “Group by” transformation and it works initially, but then stops working after refresh. I do not see any errors in browser indicating the cause of the problem. I am using “Infinity” datasource with defined columns and graphs are as follows:

Thanks in advance.

@rodolfochacon if you are still encountering this error, please include more details about your Grafana configuration and version info :+1:

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