vertices left behind by the mesh in movement/rotation of the bone

Support Animation and Rigging
1

Hi all, i have modeled a horsewoman with a sword, and i have painted all weights, but when i rotate the sword some vertices are left behind with deformation of mesh. I have tried to paint those vertices, but they remain damaged even if they are all in red colour. Please i would appreciate any hint or help with my mesh. Thanks in advance…

2

Other bones may also be affecting them.

3

Thanks probably must be that

4

You are probably long past this - but if you aren’t I suggest you go into ‘edit mode’ on your mesh >> select the vertices that give you trouble >> remove them from all other vertex-Groups than your ‘sword’ + ‘hand’-bones (or what set-up you have).
This is probably a lot faster than working in Weight painting mode, selecting every bone in the armature and painting zero-weight on the trouble area.