I already have an idea why it doesn't; I'll check it out.

TBH, IK never was an issue to me because it's heavily flawed anyway and thus I never used it. I do only still renders anyway.

However I don't think that this is a real problem; It's just about setting a few parameters in SASHA to get it working again.

Karina

Probably.

To find out, look for the parameter "-CHEAT Joint Rotations (local)" in the hands and set that to 1. This restores the hand's "Twist" parameter which was renamed to ""-Twist CHEAT" (in yellow text).

The other "twist" dial right on top, beneath the "Bend" and "Side-Side" dials can be ignored now; it's just a "repeater" for the forearms "twist" dials.

The reason for this setup is to "force" the user to twist the right body part, because humans can't twist their hand at the root: instead the bones in the forearms are twisted!

It also serves to avoid gimbal lock in the hands.

Oh - I just found something out:

are you also annoyed that when IK is on, the collars are often grotesquely bent?
Let SASHA take care of that!

• Delete the "collars" from the IK chains (select entry in Hierarchy Editor and hit [DEL] on keyboard):
  
  
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• Make sure that "-Collar Control " is ON in the BODY / "Special SASHA Controls" group:
  
  
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• Now play with IK'ed arms and compare that to a normal V4