Ensure you have the correct permissions in both Azure Synapse and Azure DevOps for this action.
Try to review the configuration and connections, especially since you mentioned that Synapse and DevOps are in different directories under the same account. Investigate any logs or error messages within Azure DevOps or Synapse for clues, and double-check any branch policies that might be hindering the import. If necessary, try restarting the process or contact Microsoft Support for further assistance, as these steps can typically resolve integration issues between these two platforms.