In Blender3.0, I create the left side of bones, In pose mode, auto name left-right, then symmetry. Then set parent to mesh as empty weight.

But as you can see in the image, when I paint the left side (fr.eyebrow.000.L) while opening the Mirror Vertex group, the right side(fr.eyebrow.000.R) is not painted.

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1 Answer 1


These two switchers should be enabled:

Mirror vertex groups an "X"

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  • $\begingroup$ Thank you for answering, but seems like it doesn't work for me. If I open both "Mirror vertex groups" and "X", my paint still has no symmetry. If I only open "X", my paint only have symmetry on the same vertex group. $\endgroup$ Mar 3, 2022 at 21:00
  • $\begingroup$ I see the similar Blender bug, enabling Mirror Vertex Group checkbox and paint on Right bone and all mirroring happens still on right side, I click on Left bone and see all painting on Right side, I have _Left and _Right vertex groups. Blender is doing something completely unexpected. I can no longer use Symmetry paint in Blender 3.3 $\endgroup$
    – Logic1
    Dec 27, 2022 at 1:02

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