Question Help understanding object vs world normal vectors

Hi! I am new to shader graphs in unity. I was trying to make this energy shield that pulsates and displaces its faces using the sine of time.
Here is my "code" that generates the displacement map over time using a gradient texture:
View attachment 831364
the gradient:
View attachment 831367
The displacement map is basically scrolling "ray":
View attachment 831370
Now I thought of overlaying a color over this ray and essentially synchronizing the color and displacement:
View attachment 831379
For some reason when the ray is sampled through object-space normal color and displacement desync. When the ray is sampled through view-space normal everything works.

Here, a youtube video I uploaded demonstrating it:

What am I doing wrong? Any help is greatly appreciated. Thanks!