Trying to animate a character in Iclone, I set reach targets on the knees and feet so they stay planted on the ground, but now it’s added some wild rotations to the calf/feet bones. I deleted the rotations out of the curve editor and yet some of these still persist.
In the Reach Target menu there is an option to select Position & Rotation I usually select them both. The Rotation option should allow you to correct that twisting issue.