Forum Discussion
I had this today with Simeon, which was weird since his friendship bar is max green with my spellcaster. Then I started thinking and checked, and my spellcaster has learned all the spells that she can learn at her caster level. When she asks Simeon to teach her a new potion, he says she's learned all she can.
In my case it's clearly just a lack of appropriate refusal text, the sage uses the 'don't know you well enough', instead of explaining that you need to get to the next level before you can learn new spells. Not sure if this is the case with the others, but worth checking.
I feel like this is also the case for me- where the game is giving me an incorrect refusal message. I kept getting this message from the practical magic sage Simeon despite having a complete full friendship bar. Even when I restarted the game I would still get this message from him. When I advanced in spellcaster rank, I was able to ask him and successfully learn a new spell from him.