I “solve” the problem by using a javascript that triggers an action when the SAVE button event finished. So I launch the WPColorPicker and it looks like nothing happened but the true is this is not the best fix. I mean, it works but I will apreciate if somebody know the way to fix it properly.
Regards,
I forgot to tell, I checked with FireBug and the JS file is still enqued and the trigger (“color” class into the input) is there.
Is very disturbing cause there is no reason for not to work