I'm trying to add subtasks underneath a task in my Portfolio for Jira plan. Adding them to the plan is working as designed, but as soon as I want to committ them to Jira through the Review button they will get created as new Tasks.
See below screenshot for the result. As you can see in the review changes screen the subtask issuetype is listed, but while committing them to Jira the pop-up selects the Task issuetype without the ability to change it to a subtask, although it is part of the issuetype scheme.
Any idea what could be the issue? The Portfolio Hierarchy is configured correctly.