Bryce 7 Pro has a bug in the keyframing.  I have pointed it out on several occassions with bug reports.  Here is what I do to work around it.

1.  Set up your scene with all the elements that you are going to use.

2. Add a keyframe at frame 0 for everything in the scene that will be animated.

3. Animate everything manually by moving the time scrubber and then adding a keyframe.

 

I was seriously hoping that in the last development cycle animation would be a focus of the programmers.  Sadly it was not.  Maybe next time they will include more animators in the group of Beta testers.

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