Atlas map drawing issue (fog over already discovered areas)

So I have an issue with Atlas map. Sometimes part of it that were already discovered are covered with fog. These parts of map covered in fog are in odd square shaped tiles which means there is something wrong with the drawing process of atlas map. Usually clicking on skull to get back to citadel solved the issue but recently even that stopped working with citadel being on the edge of one of these tiles.

Bug Report ID: #653722970