I'm having an issue getting an IK limb to work using Anima2D in Unity. If I place a limb IK for the neck joint, the head moves as expected, however trying to place one for the leg seems to have no effect.

A CCD IK seems to work, but only moving one bone of the leg, whereas I need both bones to move, like a real limb with a knee joint.

Pic of Unity with issue highlighted

Is there anything obvious I'm doing wrong?



Figured out the answer: The lower bone (in my example the Left_Leg and Right_Leg) were not set as a child of the higher bone (Left_Thigh, Right_Thigh). Setting the lower bone as the child of the higher bone fixed the issue.

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