Belnder 2.55 Shape Keys Bug?

Hi Folks

I have created a few shape keys for my character.
When I try to animate them. As soon as I go back to the previous keyframe, Blender seems not to register my keyframes… It just records the last key frame…All my key frames show up in F-Curve Editor, but when I scrub the timeline. None Animation happens.
Has Anyone one gone through the same problem? Is this a bug with shape keys?:frowning:
I am using Blender 2.55 for mac (intel) 33584 branch.

Thanks for you time.

Rodrigo Guimaraes

I just tried animating a shape key ( directly, no driven keys ) on r. 33786 ( trunk ), also on Mac intel. I can get shape keys. Maybe that bug was solved.