Color vacation’s images are not changing

Hi,

I am using your plugin on my website. tools420.ca but I have issues, when I am trying the change the color variation then it’s not working. it’s working for the first image but not other images. I have created a video for it so please take a look and let me know if you can help me in this.

here is the video
https://www.loom.com/share/c487ab59a43848e4811434f9d7dc51e6
https://tools420.ca/product/utillian-722/

This is a staging site to diagnose this issue.
https://779ec8d45d.nxcli.net/

Thank you!