If I remember correctly since there aren't all different maps for each planet the devs tried to space out the maps to the best of their abilities so two planet next to each other won't have the same one and you must go a few planets before you see it be used again. HOWEVER this also appeared to not entirely have been done with the planet's themselves in mind for all of them. Before Mustafar had a map with water due to it being close to Sullust which also should have a lava map like Mustafar should. Wouldn't be surprised if it's the case with Alzoc 3. If you see anything like this it's best to report it on the discord server so they can fix it.