Moving sub-task up and down a kanban board (does not work)

[Alexion Software]

We use personal kanban boards. My collegues often make sub-task for me. I can move these sub-task from column to column but I cant move them within a column up or down.

I can move normal issues up and down, also above and below a sub-task. But is I have three sub-task I can't place them in the order I want. The grayed-out "mother issue" will not move.

In the picture you can see that I can move them to left or right column but not in the column itself.

How can I move a sub-task in a column, setting its priority between sub-tasks and other issues. Considering sub-task are assigend to different people.

Here the kinda same problem: Solved: The sub-task parent ordering in KanBan prevent ran... (atlassian.com)

[Nic Brough -Adaptavist-]

Sub-tasks are not independent, they are a part of their parent issue.  It is complete nonsense to rank them outside their parent, so Jira doesn't support it.

[Commercial Account mecodia GmbH]

It would be good if you could move the parent then, what is also not possible. Is there a way?

[Nic Brough -Adaptavist-]

You can re-rank parent issues in the board, but only if your board filter says "order by rank"