Hi, i tried already all hints and tips that i found on internet how to enable sub task button on issue screen. I have all my fields optional, sub task is also in issue type available. I have no idea what i can do as next.
I have scrum board and admin rights.
Oh, bother, I just noticed what was in your screen-shot.
You're looking at a sub-task already. That's why there's no "create sub-task" option - you're already at the sub-task layer, and you can't go any lower (sub-task of sub-task is not possible in Jira)
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