Sorry to bring this up again but the problem appeared again!
It was fixed with WP 3.4 beta4 and now with the official WP 3.4 the hook is again not called.
How can I contact the WP developers team?
Seems to be bug at WP 3.3.2
Works like a charm with WP 3.4!
My bad, I found the hook in the code but still can’t hook my own function to it. It just does not execute my function. Has anyone used it?