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I'm attempting to copy a large json file (2.4 GBs) that has been uploaded as a file to a data lakehouse. When I attempt to choose this file in the "Connect to a data source" menu of the pipeline copy data activity it tries to show a preview of the json. I assume the file is too large to show a preview so it eventually errors out with a "Failed to load" message and I'm unable to complete the copy data wizard.
Are you able to provide us with your json file ? And can you log a support ticket for this issue, please attach the request id along with the ticket.