Board Thread:Boruto Discussions/@comment-38812954-20191219234637/@comment-1210805-20191220130503

Sharingan has a genjutsu ability. The better someone is at using it, the more they can do with it. Genjutsu, when used on an opponent whose guard is low, or who is weak a genjutsu can alter their perceptions and by extension, their memories. Jiraiya let Sasuke use his genjutsu on him, and the others weren't strong enough to counter it.