Hello everyone!
I have a project where I have installed everything necessary for Spine (through Git), and everything related to Spine itself works perfectly. However, when I try to change the default material, I encounter issues.
Using /Spine/Skeleton-lit, I see the sprite as "pink" (as if "something is missing").

If I use /Universal Render Pipeline/Spine/Skeleton-lit (or any other material from this folder), the sprite is simply invisible.

I've tried adjusting Unity settings, the cameras, and different scenes (it's a project I picked up halfway, so I don't have control over everything that's been done so far, and maybe I'm overlooking something).
The thing is, I would like to change my Spine animations so that they are affected by the lighting.
Thank you for your responses, Best regards!