Weight painted scalf not moving as expected Good morning!
I'm having some issues with a character im creating (sorry for the bad topology and so, it's the first one). It has kind of a scalf around his torso.
After weight painting it, it clips into his torso when moving a spine bone.

I've weight painted this way (the whole scalf painted in weight 1 with the spine bone)and also separated for every bone, but it does the same. I tried to merge it with the rest of the mesh (it's the same object but not merged) but at least til I saw, it didn't work.

I wanted to know if you guys had any advice for a newbie like me. Thanks in advance, I will provide de Blender file.
https://drive.google.com/file/d/1uJz2W66lmq4ujqmwnWG2JYTkJjKRzcyQ/view?usp=sharing
Each spine bone influences the whole strap (for example the top spine as seen in the picture below), it should not be the case, you need to remove the bottom part of this vertex group with the brush Subtract mode.