Unfusing vertices on lips

[system]

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This happens to me all the time… central vertex on axis plane from the lower lip is attaching itself to the vertex on the upper lip.
I go to the lowest level, try with move brush of 1px to move it but without success… how to do it?

BTW: if you know how do I unwrap the object symmetrically. The model is symmetrical and I even run resym?

Thanks!
](http://%3Cfont%20color=%22#9A9A9A%22%3E[ATT=231491)

[zber2]

Export your low level mesh to another 3D app, delete the welded vertices then fill in the holes.

[Nancyan]

Did you try the move topological brush rather then the basic move brush?