direct query from sqlserver not working for licenced user

Dear Comunity,

I have an interesting and kinda ridiculous problem:

I made some reports within 60 days period which are all using direct query, I set up the schedule refresh and they still work fine. (I was using my gmail account)
BUT after I start using my licenced pro user, I tried to publish the same reports. In desktop environment all seems fine, when I publish the report, report shows the recently updated data but data source credentials greyed out and also scheduled refresh greyed out.

I use PBI Desktop Version: 2.76.5678.782 64-bit

What may cause this behaviour? And how can I fix this?
you may see the screenshots of both users below:

Free user:

Licenced User: