These images are related to the support thread at https://social.msdn.microsoft.com/Forums/en-US/47447559-80b0-44a7-bc63-968a9eeddc4b/problems-with-logic-apps-custom-connector-to-azure-blockchain-workbench?forum=azurelogicapps
Here are some screenshots and info documenting how I get to this stage:
Obviously there is an error when trying to save the connector. There are many warnings about missing titles when reviewing the connector import result. The JSON is from the API site/swagger provided by the blockchain workbench API web app.