Hello community, happy new year to everyone :)

I'm stuck with a problem. I created a grid of 2D points, and want this points to get the color of the pixel of an image in the correct position. Things work fine if I render only one frame, but if I make it animated, connected with the mouse, some spots of the grid don't appear, in the bottom right corner.

Anyone knows why?

And more important, is there a better way to make a Pixel Mirror? The way I made is a little slow.

thanks Luiz