Transfer Attribute in 3.5

Hi,

I have been going through the Cubicity course, however I've been using Blender 3.5 instead of 3.2.

I've figured workarounds for all features that have been changed over the versions, however I'm unable to find one for the Transfer Attribute node in cubicity_C3L07_parametric-building-gradient.

1st pic is how it should look, vs my version in 2nd pic (my version isn't displaying the gradient, just black, and doesn't respond when I change the values in the ColorRamp). 

Does anyone have a workaround for this, or can point out what I've done wrong?

Thanks!