I have created a mesh using a cloth simulation and sewing, after I applied it, I merged all sewing points and applied an armature deform using the auto weights. It works badly, like this:
After trying everything I decided to try the auto weights with this armature with increasingly more complex meshes until I ended up replicating the mesh manually (magnet + extrude + F) so that I have the exact same mesh, and I applied the auto weighting, and now, it works much better:
Both meshes are the exact same and still, the auto weights work badly on the first one: why does this happen? Is there some king of atribute in the original object which is disrupting the auto weights system?
Thank you for your help!