Cursor Blend Mode Difference

Hi I’m having trouble getting my custom cursor to work using ‘blend mode difference’

I’ve looked at plink-webflow-rebuild - Webflow
&
https://cursor-blend.webflow.io/

But not sure what i’m doing wrong


Here is my public share link: https://quietly-studio.webflow.io/
& Read Only Webflow - Quietly Studio

Many Thanks
Chris