Cc.ProgressTimer doesn't work in First Scene

Hi,
I want to use cc.ProgressTimer as a loading bar in my preloader scene (cc.LoaderScene) but it won’t work. It’s not showing.

I tried this in many scenes, it all works except in the first scene that called by cc.director.
At first I thought it’s because the assets for the progressTimer haven’t fully loaded so it wont appear.
But, if I create new sprite with the exact same image used in progressTimer in the same scene, it’s shown in the scene without any problem.

Anybody could help me please?
Thanks,