Dude, someone knows why the sprite disappears at the moment when I apply the shader?

This is code

///Create
current_pal = 6
my_pal_sprite = sprite7
override_surface=noone;
override_pal_index=0;
pal_swap_init_system(shd_pal_swapper,shd_pal_swapper_html_sprite,shd_pal_swapper_html_surface);

///Draw
pal_swap_set(my_pal_sprite,current_pal,false);
    draw_sprite_ext(sprite_index,image_index,x,y,image_xscale,image_yscale,image_angle,image_blend,image_alpha);
pal_swap_reset();

These are the sprites used for testing the shader.

But, in the game, the sprite disappear...

Do you know why happens that?

Note: I use GameMaker Studio 1.4.9999