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Hi all,
I'm having a problem with published reports intermittently ending up with incomplete datasets when the report is refreshed through the Power BI service. It's similar to the issue in this thread: https://community.powerbi.com/t5/Service/Blank-Reports-on-Refresh/td-p/184998
I have a report that works perfectly fine in the desktop application. The report contains 4 different queries that hit a SQL Server database and one query that hits a Teradata database. It might be worth mentioning that the Teradata connection is using the ODBC connector since the "native" Teradata connector didn't work. We're using an on-premises data gateway to feed data to the Power BI service.
Everything works fine when I first publish the report to Power BI. When the report is refreshed through the service -- either scheduled or on-demand -- about half of the time, I end up with an incomplete set of data. Specifically, it's supposed to have about 6 months' worth of data, but when I download the .pbix file and check the raw data, it ends around the 3 month mark. Despite that, the refresh history says everything executed successfully.
The weirdest part is I might refresh it once through the portal and it will fail to get all the data, but if I refresh it again less than a minute later, it then works! And if I do it again a third time, it might break again! It doesn't make any sense to me.
Has anyone else had this problem? Any luck fixing it? Let me know if there's any additional information I can provide to help diagnose the issue!
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