Skin problem - Invisible vertex

Neowlink

Hello, I want to skin a character and when I select a loop, many vertex appear and they are invisible.
They make trouble for the skin. When I am in Editable Poly they don't appear to, I don't know where them are.
I think the problem come to the symmetry That have collapse.
I don't know how to fix it. I need your help please

KielFiggins

These stray verts are typically left over from mesh construction in another program.  I'd suggested optimzing the mesh, then exporting it as an OBJ and reopening that OBJ. that should clear out the odd verts.

Good luck.

Neowlink

Thanks you. I'll try tomorrow and I'll tell you if I succeeded

Neowlink

Hi, I tried to export my mesh to OBJ and I found my hidden vertex. I don't understand why my modeling is duplicate on herself. 

When I export, I have just the modifier Editable Poly and Symmetry on the Mesh

KielFiggins

Try a mesh seperate (dunno what it's called in 3dsmax) and deleting the duplicate.  Good luck.

Neowlink

After several tests, I found a solution. But the origin of the problem remains unknown. Thank you for your answers.

KielFiggins

What was the solution?  In case others have a similar issue?

Neowlink

We didn't discover the origin of the problem but I suspect the symmetry. 
One of my problems was that my .Obj was in Editable Mesh. By passing it in Editable poly I was able to separate the bigger easily
To solve, we just cleaned and reimported certain parts like the hand in . Obj 
Thx for tips and help.