Render target and world composition

Using this video I managed to make the same effect on a simple landscape 50400 size 0-0 located.
But when I try to reproduce the same effect on a world composition landscape 403200 size 0-0 located. (8 pieces 50400) It doesn’t work.
I changed map size and divided texture to 403200 but nothing helps

Okay, i figured out what was wrong. The landscape was in -0 -0 coordinates wich is top left corner by the center.
And my texture was set to 0 0 which is bottom left corner of world comp