Hello. When I push a "Apply changes" button Power BI Desktop reports "This query contains transformations that can't be used for DirectQuery". But my 'dataSource' query contains only decompression of BASE64 data string into Json data and transformation that into table. That 'dataSource' query is used from extraction data tables by secondary queries. If I click on any query from those queries I get a message "This step results in a query that is not supported in DirectQuery mode". When I push button "Switch all tables to Import mode" then It does change anything. I cannot get data into Power BI Desktop. It is link to my problem file. link to a power bi project with that problem.
I used 2.61.5192.601 version. Regards, Andrey Gritsenko.