I have been consulting with conflicted congregations since 1994. I had seen and been involved in many situations before then. Congregational conflict is common. It helps a little, I think, to identify a handful of the key sources of conflict. This enables us to be better prepared for what will normally unfold at some point in a churches life.
Sophie Timothy from the Bible Society in Australia recently interviewed me for an article on Church Conflict. You can find it here. How to deal well with conflict in the church (and not pretend it doesn’t exist)