There have been lingering effects since the Change in magic about three months ago. I, myself, once cast Celestial magic and that knowledge was taken from me. Others have had similar experiences. Those with magic ability suddenly found themselves proficient in martial skills. Craftspeople found their knowledge of their professions taken from them only to be replaced by the knowledge of the arcane or of weapons. I am curious in regard to the length of time it took for this to affect you. You should certainly watch your actions and see if you have developed new talents to compensate for the loss of the old ones.
Telokh Amdo