This question was posed to me in a recent conversation with a Roman Catholic. Are there any documented post-reformation miracles in the Anglican church? Nothing came to my mind, so I thought I'd put it to my betters here on the Forums.
https://visionsofjesuschrist.com/weeping1980.html This is about Dorothy Kerin. An Anglican woman with the stigmata and a healing ministry https://ponderingprinciples.com/2015/01/24/c-s-lewis-on-the-death-of-his-wife/ In 1957, after the laying on of hands and prayer, she made a miraculous recovery (even the doctors admitted as much).
I think you nailed it with your post on Dorothy Kerin. The gentleman I was talking to pointed out that the RCC investigates and authenticates alleged miracles and wanted to know if the Anglican church had a similar office, or if there were any miracles within the AC, and if there weren't what does that say about Anglicanism since the true Apostolic church in Scripture "confirmed the word with signs that followed." (Mk 16:20). His point being that a church with no miracles is not the True Church.
https://www.christianforums.com/threads/eucharistic-miracles-in-the-anglican-church.2527714/ At the 2017 Synodal Mass held at Corpus Christi Anglican Church in Rogers, Arkansas, Rev. Fr. Jason Rice of the Holy Catholic Church Anglican Rite, a Continuing Anglican denomination, affirmed a Eucharistic miracle in which "an image of a heavenly host appeared directly over the chalice immediately after the words of consecration. There are also these
Although I would not discount CS Lewis's wife's healing either. It was done within and by Anglican's. It shows the Holy Spirit is working within the Anglican Church still performing miracles.