Share your thoughts on DirectQuery for Power BI datasets and Azure Analysis Services (preview)

Created a report based on the composite model from a PBI dataset and a Sharepoint import. Once it is published on PBI Service the refresh of the composite dataset loses all the data from the sharepoint connection mantaining only the data from the underlying DirectQuery connection.

If I download the report after the dataset refresh on PBI Service, the data sources show only the live connection to the original dataset, it seems as if the refresh of the composite dataset will revert the feature of DirectQuery for PBI datasets to Live Connection.

Harsh lesson for to learn the day of deployment