>>Ophiuchus (/ɒfiˈjuːkəs/) is a large constellation straddling the celestial equator.
Ophiuchus has only his foot on the ecliptic, which is the path that matters for all things zodiacal. If they've really introduced disharmony into the system by shortening Scorpio and inserting Ophiuchus, Freemasons are being misled and deceived regarding the ancient teachings of astrology.
There are many interrelated parts of the system which don't work at all when a thirteenth sign is inserted. Traditional timing techniques, receptions, essential dignities, and many more parts of the system simply don't work if the system is corrupted. If Freemasons try to work with astrology using a corrupted system, they will fail.