When I start UDK, i change the cube size to a big platform shape. I then set it to solid and apply a texture. Some reason I randomly lose the ability to change the texture. It's like certain textures remove the ability to change it. I hit ctr z to remove the texture I thought was causing it and then I can't do anything to the platform anymore. NO texture will go on it.
Also when I place a player start and try to line it up with the platform on all 3 of the screens I get a X inside a green box. Once the box appears it never goes away no matter where I place the dude.
If I restart and do everything perfect I am fine, but this would get real old if I wanted many platforms and walls. Any clue what is going wrong ?