HI, i'm new to Halo 2 Vista map editing so I was going through the tutorial. I'm sure I did everything correctly, but when compiling I got an error: Unable to find shader "material #26" (that's the material for f_im flat_light_scratchy). If I ignore hte error and try to load in sapien, it tells me the file is corrupted and closes. I'm not sure what I did wrong since the material has the correct name. Please help me out. Thanks.