I own a 4096 sq.m.of land. It is Mainland. I wanted to remove the option of residents creating landmarks to my land. I know that this can be done under the options tab, but for some reason it does not remain unchecked. In a weeks time, I have to always uncheck the Create Landmarks option. As if some type of default is resetting my choice. Can someone provide some feedback to this issue, a possible solution? Thank you so much.