I recently added a question about how to make my finger bones follow a rotating crank handle.
That was solved.
But of course this was not a full solution as I now have a problem that has no logical explanation.
*** THE QUESTION ***
The four of my fingers are IK constraint to an empty object which is child of a rotating crank handle object.
It works absolutely without a problem, they follow the empty just as I wanted to. I placed the empty where I needed it to be placed and everything is fine.
However the thumb is not following the empty, even though it is IK to the empty the same way all other fingers are. Whenever I move the empty the thumb is also moving, but when I animate the empty, the thumb doesn't move, all other fingers are moving.
I was playing a lot and found out that if I was to unparent the eyes from the armature it fixes the problem somehow ? Makes absolutely no sense, I now need to have my character with no eyes in order to make my thumb follow the empty with IK constraint ? What is going wrong here and how to fully fix this ? Is it because I have too many parented objects or too many IK constraints ? If anyone have some sort of solution to this puzzle let me know. Thanks