I've noticed these red vertices, the geometry seems ok, nothing duplicated or crossed.
It just baffles me, thinking something might be in error.
Any ideas?
Hi @terrycarbary@gmail.com
Those are because you have some Creasing on those Vertices:
You can set it to zero (on selected Vertices, it will say ' Mean Vertex Crease when you have more than one Vertex selected) in the N-Panel, or use CTRL+V.
It is a relatively new feature, meant for use in combination with a Subdivision Surface Modifier:
