I can throw it off if necessary
I wonder if it is a problem with the post processing material, or if post processing is even running at all.
If you create a basic post process volume with a very extreme/noticeable effect. (Like Color Grading → Temperature for example) Are you able to see that effect on mobile?
Yes, you can see him
Ok, next I’d want to verify that the ‘ScreenPosition’ node that’s driving the post process effect is working as expected.
If you place this material on something in your level, do you get the same results on mobile and PC?
Yes, I will get it