No Sub-tasks in all Projects, but I can't still disable it.

[Siobhan Wallace]

Hi, I'm a Jira Admin at my company, and I wanted to disable Sub-tasks from the system.

All sub-tasks were migrated to tasks:

Unfortunately, somehow the system still accuses the existence of Sub-tasks.

Is there a delay between the time I migrate the old sub-tasks and the system recognize there are no sub-tasks remaining or is there some other possible types I missed?

PS: this is the list of types the system accused for me:

[Nic Brough -Adaptavist- · Accepted solution]

I suspect there are 33 issues that are sub-tasks, ones that your query is not finding.

Instead of naming the issue types you think are sub-tasks, try

issuetype in subtasktypes()

[John Funk]

And you might not see all of them in the query because you might not have access to them. But that's the reason you can't disable. 

[Nic Brough -Adaptavist-]

"Bother!", said Pooh, as he completely forgot about issue security when writing his answer.

If the query I gave there doesn't return all of the 33 issues, then you've got an issue security scheme in place which is stopping you seeing them. 

You'll need to talk to the project owners about getting yourself added to the security scheme, or get them to change the security level on the parent issues to one you can see.