"Well not quite, though it is indeed related to Crux exposure. As best I can tell, what happened is that you were momentarily destabilised and subject to radiation when exposed to the Crux. When you reappeared shortly thereafter and we defeated Sin, we decided not to destroy the Crux because it had become quiescent and destroying it might have been much worse than just leaving it alone. However, it seems that the exposure, which had seemed harmless at the time, has caused long-term amnesia dating back to the Crux's exposure, at least in Tenebrynn. Have you experienced it as well? What about Elektra? She was exposed also."