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I have a similar problem as this question. I'm trying to learn blender, and am attempting to rig a low poly dog model, but when I rotate one of the legs in pose mode, the opposite side leg follows, but I can't figure out why. I made my rig the parent of my mesh by first selecting my mesh object, then my armature, hotkey Ctrl+P and selecting “With Automatic Weight”. Per the answer to the similar question I mentioned, I followed all the advice there (applying scale and rotation, fixing normals, etc.). The mirror modifier I used to create the mesh has been applied. There is a subdivision modifier and a decimate modifier both on the object (not yet applied), but neither applying nor removing those fixes it. I've moved the armature modifier to the top also, but that doesn't solve it either. In every tutorial I find, it seems they are able to use "With Automatic Weights" with no problems -- what am I missing?

Here is my blend file:

image of problem

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  • $\begingroup$ Try editing the weights, so each bone only affects the part its supposed to. $\endgroup$
    – Matytoonist
    Commented Jul 8, 2021 at 3:01

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As you can see, you have flipped normals, recalculate them. Also, apply the scale and rotation of both the object and armature. Then reparent the mesh to the armature.

enter image description here

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  • $\begingroup$ After recalculating normals, I also had to sever the relationship between the armature and mesh and reparent it and it finally works. Thank you! $\endgroup$
    – quirky purple
    Commented Jul 9, 2021 at 18:16
  • $\begingroup$ sure I forgot to say to reparent ;) $\endgroup$
    – moonboots
    Commented Jul 9, 2021 at 18:21

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