One of the most demoralizing bugs involved the sim crashing exactly when you extended landing gear on final approach into a photogrammetry city (like New York or London). Asobo traced this to a memory leak in the . 1.9.3.0 completely rewrote how the sim purges old map data from RAM, virtually eliminating the "approach CTD."
: Introduced high-resolution digital elevation mapping across the entire country and new photogrammetry for six major cities: . Microsoft Flight Simulator 2020 patch 1.9.3.0