I can try to look into this again on the quadriflow side if you guys want. I might be able to solve that the verts are sometimes moving off the border edges, but I can't promise anything.

@Sebastian Parborg (zeddb) I would be nice to fix this in Quadriflow because that will also improve the results when working with meshes with open boundaries, but if it is going to take you a lot of time we can use this fix instead to solve the symmetry issue.

It might be working looking into this for a few hours, but if it's more than that I would just go with the workaround.

Maybe it's possible somehow tag bisected vertices and preserve that information through quadriflow remeshing, rather than relying on the vertex positions.

I looked into the quadriflow code, but I didn't see any quick and easy fix sadly :/