Problem with Smartbone and his target.

[Lychee]

Hello.

I'm on a new idea of creating animation of a foot, and I have a problem with a smartbone that no longer follows its target as it should.

I have a smartbone named "profile", attached to a bone named "profile switch", and who must follow a bone named "profile target".

When the rotation of the foot reaches the position left or right, "profile smartbone" must do the animation to the left or right profiles.
And so that the animation of the rotation be complete, a reversal of the "profile smartbone" takes place depending on that the foot points upwards or downwards through the bone "profile switch".
But the animation does not seem to have taken into account the reversal, as if the switch was not done.

Yet when we look into the timeline of the "foot" smartbone, the animation works perfectly.

What the frak !????

Help me please.

https://www.dropbox.com/s/gknpa4395phge ... .moho?dl=0