[ROM] Sages are replaced by random NPCs

I started a new game for the nature event and turned my ghost sim into a spellcaster. When I was in the Magic Realm all sages were replaced by random NPCs, even though Simeon, LFaba and Morgan were still alive in this save, they were just not sages anymore.

I have no mods, and have the latest update. Not sure if it has smth to do with the update, but it is the first time I am seeing sages swapped in a new save file.