First: If your diffuse UV's are not 0-1 and unique it will not work right. Second: UDK is looking in the wrong place for UV data, change your UV channel in UDK to 0 if the UV's are 0-1 in UV channel 0. Three: 3DS Max/Maya UV is 1, 2, 3 etc. UDK is 0, 1, 2. Bitmap, can we start compiling info in the first post of this…