Imported topics don't show in category list?

support
1

I imported 238 topics to a category named ‘Problems’ that don’t show in the ‘Problems’ category list.

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image2326×932 115 KB

Strangely, at the same time, the imported topics show in Suggested Topics list.
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image2376×1456 154 KB

2 
      opts = {
        :user_id => 1,
        :title => row["title"],
        :raw => row["url"],
        :created_at => Time.strptime(row["created_at"], "%Y-%m-%d %H:%M:%S.%L"),
        :category => 4,
        :import_id => row["id"],
      }
      create_post( opts, "custom_import_id")