Power BI - Sequence contains more than one element

[Toretto70]

Hi everyone,

I'm doing a report in PowerBi desktop which retrieves data in directquery mode, throught a query statement inserted as Source.

The source data rest on two different Databases on SqlServer, tied appropriately between them.

These data are querying on Sql server where they are overturned from a datalake.

 The report layout is composed by a simple grid-table, and two slicer.

Sometimes happens that when I open the report on Desktop to visualize it appears a message like these:

"com error Microsoft PowerBi.client OleDbProvider,sequence contains more than one element".

If I goback to Transform Data mode, open the  the Source panel and copy and paste again the Sql Statement originary and close&apply the report appears again.

That's no a solution, obviously.

Is there someone who can suggest me where is the issue and how can I solve it? Thank you

[v-yingjl]

Please try to create a new blank report to connect to the data source or update Power BI Desktop version to the latest version (2.99.862.0 Nov 2021)to check it.

Best Regards,
Community Support Team _ Yingjie Li

[Toretto70]

Thank you for the answer. I'll try with the blank query as you mentioned. 

Regarding the version, I have installed the latest release before doing this report