CAT's FK/IK Blend for feet has been broken for about at least 5 years. The blend form IK to FK always screws up the toe bone. I think other problems happen too when doing this blend -- but I know the toe bone is ALWAYS MESSED UP.
Why can't this be fixed? It has been noted/reported and been around for ever.
I wouldn't normally post it here but C'MON -- this is such a headache to deal with. FIX IT!!!!