We've noticed that when an article that was already created has another placement it can take several minutes before it shows up in the new section. When adding sections at the same time there is no delay.
Believe this to be tied to cache, so I don't think there is action to take - more just something to be aware of if you are sharing links immediately.
This request was closed and merged into request #12995313 "[Community Post] Pesquisa de NPs".