I have some model, on which I am trying to weight some parts of mesh. On one part something goes wrong - part of textures of mesh is deforms on weight painting. For example, if I use instrument Mix in Weight Paint, some textures goes sticky to some points, which located upper, than mesh:
If I am trying to remove these deformations with Subtract instrument, then some textures goes sticky to some points, which located lower, than mesh
How to fix these weight errors?