Help with forking a project

I found a cool voxel engine thing in PlayCanvas, but when I forked it, it did not work for me. Why is that?
This one is MAX’s
https://playcanvas.com/project/827487/overview/voxels

This one is mine
https://playcanvas.com/project/1341481/overview/123

BTW, it took me three and a half hours to find this :smiling_face_with_tear:

Without looking that closely in the project, it’s likely due to the shader chunks being written for an older version of the engine and need updating