Originally Posted by Orophin
You can't really place Miotsukushi-hen in the timeline of Higurashi since it's not even canon to begin with. Miotsukushi is an unofficial alternate ending made by the company Alchemist and is not written by Ryuukishi. The only reason why some fans claimed it was the real ending is because it was sadder than Matsuribayashi-hen.
Anyway, thanks for the patch kaitoein.
It was also advertised as the "True Ending". You never know. Maybe Ryuukishi liked it so much he declared it true!