Those who would point to weeping statues or leaking paintings or other such things and claim that upon such ‘grounds’ the veracity of a particular church or tradition can be established betray in their words their failure to recognize the heart of the Christian faith.
It is not such trifles or tricks that prove the truth of the Christian claims; rather, it is the ‘ordinary’ miracles that attend everyday life in the Christian churches. It is the miracle of regeneration and the miracle of the physical presence of the body and blood of our Lord that demonstrate the power of God.
Every child of God who can claim Baptizatus sum. is proof of God’s promised and abiding presence with His true Church on Earth. You can keep your supposed signs; I will cling to the ones established by God.