Try this if you stuck at 99% Dathomir explored map | Star Wars Jedi: Fallen Order

So I am also stuck on Dathomir with 99% map explored even finding all chests. In my case, I missed this little part of the Swamp of Sacrifice region. There you can also sense an echo of some Nightsisters rituals. Wish you good luck with completing a Galaxy Far, Far Away achievement:) #starwars