Subtask: We couldn't connect to that issue

[Deleted user]

Hi! I created a few subtasks on JIRA, but I when I try to open them, I receive this pop-up:

I'm not sure why this is occurring. One possible root cause could be that when I try to add a new ticket to my Kanban board (create a new issue), the only issue type options are: epic, task. A subtask does not appear in the dropdown. I'm not sure if this a bug or yet another intentional quirk of JIRA. 

And here's proof that I absolutely included 'subtask' as an issue type in the project settings:

Please help me solve this puzzle! 

[Trudy Claspill]

Hello @[deleted] 

Subtasks will not appear in the drop down of issue types in the Create Issue dialog because subtasks can exist only as the child of another issue.

To create a subtask you must go to the issue that will be the parent and click the Add Child Issue button. Note the parent issue in your case must be a Task. You can't create subtasks directly in Epics. When you click the Add Child Issue button in an Epic, that will create (in your case) a Task that is a child of the Epic.

Exactly what steps did you go through when you created your subtasks?

[Ismail Sanni]

Hi @[deleted] 

Do you have issue security on the project?