After decay there is unlearn???
I just noticed something very strange. I revisited a tree I had neglected for a really long time. I was astounded to find some skills had not only decayed, but I do have to relearn them. Anyone else ever encounter something like that? At first I thought it was because they changed the tree around, but when I found I had to relearn a part of "phrases" I knew it had to be the worst form of decay. Is this a bug or a feature?
I think the French course has had some extra lessons added to some skills plus some other changes and that has meant that a skill may have to be relearned. It is not part of the normal decay AFAIK.