anomaly detection problem

[superME79]

when I use the tool finds errors the system works for identifying the point of anomaly but does not explain it, the second part goes wrong due to a problem of the calculation engine there is something I need to know or can do?

[superME79]

the problem I am re-discovering relates to the natural language explanation of the anomaly and the factors associated with that anomaly, ordered according to its explanatory strength.
in fact, in the first instance it does not detect consistent anomalies, adding the fields on which to focus by hand returns the message of an error in the calculation engine. What I would like to understand is if there is something that needs to be additionally enabled or is a particular arrangement of the table it is analyzing necessary?

[negi007]

@superME79 you can find more details here

https://powerbi.microsoft.com/en-us/blog/anomaly-detection-preview/

Besides detecting anomalies, you can also automatically explain the anomalies. When you select the anomaly, Power BI runs an analysis across fields in your data model to figure out possible explanations. It gives you a natural language explanation of the anomaly, and factors associated with that anomaly, sorted by its explanatory strength. In the example below, you can see that on August 30, Revenue was $5187, which is above the expected range of $2447 to $3423. You can open the cards in this pane to see more details of the explanation.

[superME79]

This is the behavior that I expect, the first part is realized the second one goes in error, has it ever happened if yes, how is it solved?