_MainTexture not visible in GameView

i draw a Texture2D with SetPixel and apply, and set as an object’s main texture.

The texture is only visible in scene view from a distance of between two and 3 meters. it is saving as having blue on it, but in the box texture window it shows as all grey, that is the problem. please ignore the black color, it is just a color change shader.

Have you tried different shader?