Haven't you read anything that has been posted about this above???
Don't bother with Google, go to the Vatican's site and get it straight from the horse's mouth. Unitatis Redintegratio n.6:
"Thus if, in various times and circumstances, there have been deficiencies in moral conduct or in church discipline, or EVEN IN THE WAY THAT CHURCH TEACHING HAS BEEN FORMULATED..."
The link is here:
http://www.vatican.va/archive/hist_councils/ii_vatican_council/documents/vat-ii_decree_19641121_unitatis-redintegratio_en.html
*The word is IF. Because the Council did not address, or footnote, examples, presumably none exist. If they did or do exist, it is only the MAgisterium, not you, who has the authority to clear-up any deficiencies - DEFICIENCES ARE NOT ERRORS as you appear to think
The Living Magisterium said "if" and you rocket to the wrong conclusion going so far as to say you think the Living Magisterium has become protestant, a thing existing only in your Sola Traditio world..
In fact, you appear, to me anyways, to delight in thinking the Living Magisterium errs. To me and my ilk, that is beyond strange for anyone calling himself a traditionalist to say nothing about a mere Catholic.
But, what is the Living Magisterium when compared to a man who searches Tradition to correct the Authority Divinely Established by Jesus?