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I've been beating my head against the wall on this one today.
I added a new dataflow table into a dataset using the Dataflows connector in PowerBI desktop. Everything refreshes fine in Desktop, but when I publish to the Service I get a "key didn't match any rows in table" error. I tried a lot of different things, and eventually re-created the table using the "PowerBI Dataflows (legacy)" connector. After publishing to the service, the dataset refreshes as expected.
Is there a known issue? The only related thing I see on the forums is actually the opposite... Users having issues with the legacy connector.
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