Data flow not refreshing

please check your credentialas or that you have rewuired permission to the dataset.

allso check your data source configuration

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I have the exact same issue this morning. All of the dataflows within a certain workspace stopped refreshing and for all of them I get the same error "MWC client failed with user or caller error". I tried downloading one of the dataflow in the json. format and running it from a different workspace and it works just fine. Any ideas what could be causing the issue and how it can be solved? Thanks