How to have sub-tasks displayed in the detail view of a Kanban board?

[JayC]

When adding sub-tasks to an issue, the Sub-tasks are being filtered by my Saved filter when trying to view them through the details issue view within a board. 

What adjustment do I need to make to have my sub-tasks display similar to the linked issue in the screenshot below?

Current Filter Query: 

type = Lesson AND category in ("Courseware Project") AND status not in (Obsolete, Done) ORDER BY Rank ASC

[Andreas]

A JIRA scrum board backlog simply won't display sub-tasks.

Read e.g. https://community.atlassian.com/t5/Jira-questions/How-to-Display-Sub-Task-below-the-Parent-Task-in-the-Backlog/qaq-p/262062 for more information on that topic.

[JayC]

Thanks Andreas. I updated my question as I took it from one already listed. I am using a Kanban board, so there are no sprints or backlog. 

[Prince Singh]

@JayC  HI, Did you find any solution to it?

[Maximilian Weißböck]

This is one of the many stupid decisions Atlassian has implemented and is not willing to change. Like many others. Too big to listen to customers, sadly.