I’ve found a workaround:
For each category:
- When the description topic is lost, search “About the category” in the category to recover it.
- Always, open the description topic, and re-pin it. It should be definitive, this time.
Why are the 2 subcategories of the Platform category we can see on the All categories section not visible on the Platform category web page?
Why is About the Site Feedback category neither pinned, nor pinnable, nor closed?