IK with pole over subdivided bone chain don't bend Adding IK constraint with target and pole over subdivided bone chain don't bend

Steps:


Add single bone
Subdivide(W) in two
Extrude from final tail the target and clear parent
Add new pole bone in front of first joint
Add IK constraint with target. With this configuration the ik works well
When pole bone is added in IK constraint the joint don't bend


The bones transformations arent blocked in bone panel. The same configuration with extruded bones work well. Where is the blocking configuration option?

Blend file
Yep. This is a bug with the Armature system and may be worth reporting. I think the issue is that it doesn't know which side of the bone is supposed to face the pole target.

However, if you rotate the IK bone after moving the target bone, the IK bone will snap to position, and work.

Rotate



Snap