Caillou

Why is it only MARS doing this? Whenever I get close to MARS it turns into DUNA! Why does only MARS turn into DUNA when I try to LAND on it?

Hi friends I have a problem regarding textures. Basically, the textures from orbit look nothing like the textures on the ground. Earth works fine and so does the moon, but I've noticed Mars is the biggest issue here. For example, if I land in a crater or next to a big mountain, the ground is completely flat and seems like it has nothing to do with what it looks like from orbit. It also looks just like the stock Duna texture except completely flat. Any ideas on how to fix this?