Problem with rig

Hello all,

Well I have a custom attribute to go from FK to IK (and vice-versa) in the arms of the rig I have created. At times while in IK, the wrist control automatically rotates to a weird pose while scrubbing through the time line. I was wondering if someone could help me to fix this.

I also have a null as a twist bone. Could this be causing a Gimbal problem, hence the weird rotation. The twist null just rotates 50% of the hand/wrist controller in the local x via an expression.

I really appretiate all the help in advance.

Cheers,
Vikram.

Do you have any screencap showing the problem?

wild guess... do you have anything set to control the roll when you switch to IK?

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