I am trying to approve a task using CF workflow API . While testing the approval from the API hub ( after creating an appropriate environment corresponding to my trial account), the service sends me the response "The task is already claimed by another user".I am able to create and get a list of workflow instances/user tasks etc. using the same environment.
There is only one user who has ever been assigned to this task and that is me . Approval works fine via My Inbox .
Can someone please suggest what could be wrong? The following are part of the payload JSON