Problem animating object with children

I’ve got a empty that is the parent of 3 objects. When i try to animate this parent, I can add a loc key, but then the empty becomes unable to move. What’s going on?

works for me…

insert [first] loc keyframe

advance a few frames

move empty

insert another keyframe…

repeat steps 2-4…

My problem is that on step 3, the empty won’t move for some reason. But if i remove all keys for the empty, it’s movable again… this is a really wierd problem

Is one of the children a particle emmitter?