Board Thread:Naruto Discussions/@comment-46702312-20200902014722/@comment-45712993-20200904201933

Madara had to revert his Rinnegan to the EMS in the fight with the 5 Kage to put Ay in a genjutsu, but was also able to use the Susanoo while blind. It's possible that the Susanoo works differently, but as we've never seen Madara's MS abilities, it's also possible to say the abilities of the Rinnegan are inconsistent. As it stands, I think it's left up to interpretation unless otherwise confirmed later down the line.