First time working with armatures and IK, I had a rig working and somehow I did something that broke it. I'm using the Auto IK option for it.

It's a 2D spider (don't mind the leg count) and each leg segment is a separate object.

This link has a video of it working and one of it not working https://imgur.com/a/6oDkFQE

To describe it, it's as if the first 2 leg segments had their rotation locked, and the 3rd one didn't, but I can't find what's locking it, if that's actually what's happening.

As far as I can tell, rotation is not locked in:

  • The menu that appears when you press N
  • The Bone Properties tab

If you have any idea what might be causing it, I'd appreciate it.

The blend file:


1 Answer 1


Once you've selected the bone in Pose mode, press G and use the MMB to choose the length of the auto IK chain so that it affects more or less bones, the length is displayed at the top left of your 3D view:

enter image description here

  • $\begingroup$ Got it, many thanks $\endgroup$ Commented Oct 28, 2023 at 13:51

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