I'm hitting this same error message. I am running ARD v2.8. I am trying to export stored Paths from ARD to Jira as Test Cases. I have mapped Paths, Flows and Blocks for the Jira project I am trying to push to. I can see the Issue Type of ARD Test Case that I created in Jira. I can use Jira User Stories to create ARD flows - so the integration is working from Jira to ARD, but not from ARD to Jira. What am I missing?