Oh my gods if I only knew this thread existed before: I had been making a few spellcasters to transfer to my other saves since the release of RoM, and I was absolutely upset to discover that all their learned spells and potion recipes, no matter how they learned them (including cheating them on) did not keep them when I placed them into another one of my saves. They did keep all their perks and current rank, but not the spells they had already learned. I spent days working on getting their spells, only to find out they just forgot them all upon moving to another save. It frustrated me so bad.
To add onto this bug issue, I tested on new saves post-RoM on complete vanilla saves; no mods and no cc just to make sure. I also tested spellcasters in 3 ways; cheating the occult trait onto them, making them in CAS, and turning pre-existing as well as new human Sims into ones through the official rite of ascension, and all of them did not keep their learned spells and potion recipes when transferred to another save. I even went through the long process of asking for the rite of dissolution on an existing spellcaster, waiting to ask back to become one again, and still those ones also didn't transfer correctly. I am sad this doesn't get more attention.
