As the title suggests i'm having some issues with workflow buttons.
I have just added around 500 Epics, Story and tasks into a project, while we are evaluating Jira, but i just notice that over half of the tasks dont have the workflow buttons to start, resolve, close an issue.
I am using the default workflow and haven't played around with the settings for this. But why are some showing up and some aren't?
Without Workflow Buttons

With workflow buttons

Workflow

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