Erroneous and incomplete boundary lines
The triangle between the former border between Spanish Western Sahara and Mauritania and the current border between Morocco and Mauritania, which was drawn with the construction of the berm in the late 1980s, needs updating. Until today (2022) the same error is subject to the "UN map no.3691 rev.65, West Sahara" including a shift in the representation of the berm - which also follows wikipedia.
the border of the triangel also encloses the dunes of Zmoûl Oûdeï Ourg  and divides "the first and second military regions" so proclaimed by the SDAR