I have never felt comfortable with Our Lady Undoer of Knots, mainly because I lived near a Order of Franciscan Sisters once and they use to have New Age Prayer groups where everyone had to join in a circle and hold this cord together - CREEPY!
It is also suspect because - First - it is promoted by the Pope who is leading us astray with the Pachamama!! Second - Knots are used in magic spells and in new age religions. Third - It was not a divine revelation given to us by God. Fourth - Our Lady always wears a veil and she is not here. Fifth - She does not have a Rosary but a cord used in other religions. CREEPY!
Why would we turn to this devotion when there are so many devotions of Our Lady that have been given to us with a Divine Revelation and many miracles. If anything good has come from this I think it would be suspect.
Links below on some info I found on the internet of the use of knots - tied and untied. It would make you think twice before picking up this devotion. Turn to Our Lady of Fatima and her Rosary - or Our Lady of the Miraculous Medal but be safe and leave Our Lady Undoer of Knots alone. There are too many occults out there and we need to be vigilant against them.
Bernadette Porter is a Traditional Catholic, a wife of 42 years with 6 adult home-schooled children and 6 grandchildren. A sincere devotion to Mary, the Mother of God leads me to want to share "The Church's best kept secret" - Mary!