Making all bones posable can't work with IK

[Yek Bruce]

Simple IK and auto Ik can’t work when I make all bones posable before or after adding IK. If I do it before adding simple IK, the arms will be like this:

if after, the IK will not work at all. Is there a solution or I have to use MHX or Rigfy?

[Alessandro Padovani]

works fine here with 1.6.1.0852

steps:

1. import G8F, merge rigs, make all bones posable
2. add custom shapes
3. add simple ik

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[Yek Bruce]

I updated the addon to 1.6.1 in blender 2.93, but I can’t import any morphs, many errors occured. I tried it again in 3.1, morphs can be imported, but after making all bones posable and adding IK, the IK still didn’t work.

[Thomas Larsson]

Once you have added IK, be it simple ik, mhx, or rigify, making bones poseable no longer works. It may not result in any direct errors, but the behaviour is unpredictable. I should probably add a check to make this impossible.

Adding IK to a rig with poseable bones should work ok, as long as no bones involved in the IK chains are duplicated. So you can add IK if the character has no body morphs, or mhx-compatible body morphs, but not if it has body morphs that affect the arms and legs.

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[Thomas Larsson]

Now an error is raised if you try to make bones poseable and the rig has simple ik.