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I wanted to ask if this is a normal behavior. SO the problem is I am creating a simple right leg rig with three bones and parent them to the pelvis. Then I mirror it to the left leg. And I have noticed that when I leave the checkbox "Mirror names" unchecked - everything works as usual. But when I want to mirror names(Thigh.l - Thigh.r) - the function works but causes some weird dependence between the bones - they rotate together if I try to rotate any one of them as if their rotation becomes linked. If I rename them - everything works as it should, but if I return to the Blender naming convention Name.l, Name.left - the glitch returns. Can someone tell me what I am doing wrong?

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  • $\begingroup$ what operation do you do to mirror? where is the "mirror names" option? I personally use header menu Armature > Symmetrize when I want to symmetrize $\endgroup$ – moonboots Aug 24 '19 at 14:08
  • $\begingroup$ I use simple mirror "command" because Symmetrize doesn't work properly for me for some reason. With the necessary bone chain selected I press Duplicate-Ctrl+M and there's the "Mirror names" checkbox. That's where trouble happens $\endgroup$ – Sergei Kritzien Aug 24 '19 at 16:39
  • $\begingroup$ there should be no problem with symmetrize, I've forgotten the old way of mirroring the armature so I guess someone will help you better than me :/ $\endgroup$ – moonboots Aug 24 '19 at 16:57
  • $\begingroup$ maybe share your file (version with the problem happening) $\endgroup$ – moonboots Aug 24 '19 at 17:06
  • $\begingroup$ The file is a total clutter. Maybe instead you could check the same procedure that I did? I mean mirror bones the Ctrl+M way with the checkbox "Mirror names" checked? And if you don't have the same problem - I will just know that I screwed up somewhere and it's not Blender. $\endgroup$ – Sergei Kritzien Aug 24 '19 at 17:11
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In the 3D View N panel, deactivate the X-Axis Mirror option, it makes the opposite bone move when you move a bone.

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