Traveled all the sands....achievement didnt unlock

Alls I had left to do was discover 2 locations on Pandora and beat the cov slaufhtershaft and id have the game completely 100 percented and all the achievements done, coupdnt do the mission so I finally said screw it and went hunting for the locations, which are kinda broken too, but I find those and i get the achievement for seeing all of Pandora, the last of the planets I had left and on my galaxy progress it says 223 /223 locations but I didnt get the achievnent for seeing all locations