I’m not exactly sure why, but I’ve also experienced the symmetry sometimes going a bit awry.
One thing that can help is hitting the Symmetrize button in the symmetry drop down menu, just make sure to set the preferred direction:
I’m not exactly sure why, but I’ve also experienced the symmetry sometimes going a bit awry.
One thing that can help is hitting the Symmetrize button in the symmetry drop down menu, just make sure to set the preferred direction: