Issue Summary

Whenever you configure a rule using the For Stories (or other issues in Epic) component, the rule will fail to execute if sub-tasks are disabled on the instance, while recording an error message in the audit log.

Steps to Reproduce

1. Disable sub-tasks. (Jira Administration Icon > Issues > Sub-tasks > Disable sub-tasks)
2. Create a rule that has the Stories (or other issues in Epic) component.
3. Execute the rule.

Expected Results

The rule is able to be properly executed.

Actual Results

The rule fails and the following message is displayed:

Workaround

Remove all sub-task issue types and enable sub-tasks in your instance.