Summary As a Jira Premium user, I am unable to create a new space (plan) using the Premium template called "Top-level planning." The creation fails every time with an unknown error. Creating spaces with other templates works without any issue.
Steps to reproduce
- Log in as a Jira Premium user.
- Start creating a new space (plan).
- Select the Premium template "Top-level planning."
- Click Create.
Expected result The space should be created successfully, the same way it works with other templates.
Actual result The space is not created, and the following error message appears:
"The space could not be created. Something went wrong for an unknown reason. Click Create to try again. Contact support."

Clicking Create again does not resolve the issue — the same error keeps appearing.
Additional information
- The issue occurs only with the "Top-level planning" Premium template.
- Creating a space with any other template works perfectly fine, so the problem appears to be specific to this template.
- Subscription: Jira Premium
Request Could you please investigate why this specific Premium template fails and help resolve the issue so I can create a space using the "Top-level planning" template? Please let me know if you need any additional details (account ID, site URL, screenshots, timestamps, browser/console logs, etc.).