Zardnaar
Legend
So re-watching sime stuff about Jedi knowing about Sith.
1. Ki Amundi is wrong about the Sith. The council doesn't know after Obis master reports it in TPM. Yoda doesn't contradict this.
2. Yoda not only knows something but he knows about the rule of two. His decides lived long enough he could be the last Jedi left who knows something.
3 In the clone wars he knows of Darth Bane while talking to his spirit.
So depending on execution a few Jedi learning of the Sith doesn't contradict canon espicially if that knowledge is buried.
1. Ki Amundi is wrong about the Sith. The council doesn't know after Obis master reports it in TPM. Yoda doesn't contradict this.
2. Yoda not only knows something but he knows about the rule of two. His decides lived long enough he could be the last Jedi left who knows something.
3 In the clone wars he knows of Darth Bane while talking to his spirit.
So depending on execution a few Jedi learning of the Sith doesn't contradict canon espicially if that knowledge is buried.