Depends where they come from, KK's own free statics folder or from a mod that uses KK. The textures should be in the same folder that holds the configuration files (.cfg) and the model file (.mu) for that static. Look at what the static is called in the editor when you are going through the list of things that you can add and then try to match it with the name in a config file. Just open the config as you would a text document and read the "name =" to find out what it is called. Otherwise KK has been known to randomly mess up it's configuring of statics. You might need to remove, save , then put back in again. I had trouble where a runway I had on the ice had it's border set for the snow texture and randomly it would shift back to grass. I believe that if you can find the location configuration file (for that area) and move it out of the KK folder structure, but still inside the GameData folder structure, that may stop it from happening in the future.