Ok, this is the BIG one: I have a motion tween, moving a single graphic forward & backward on an even plane, comprised of six keyframes. I built this animation about a year ago. Now I want to add a keyframe thirty frames after the last keyframe in the timeline for this tween, and I want to position the graphic being animated so that on that last keyframe, it is positioned off the screen to the right. So I put in my new keyframe, put the playhead on that keyframe, then click & drag the symbol off to the right of the stage. That should do it, right? All the other keyframes should be holding their positions with the symbol where it was before on those keyframes, right. But they aren't. They've all moved proportionately to the position of the new keyframe I put in, thirty frames farther along the timeline. I've been pulling my hair out for 45 minutes, trying everything available in this interface (yes, including the roving keyframes toggle), and CANNOT find whatever it takes to have those earlier keyframes hold the symbol in the previous positions when I try and add another animation segment to the path.
Seems like having the symbols stay in position with previous keyframes would be the default, doesn't it? Any ideas on how to add a new keyframe, move the symbol on the stage to a new position on that new keyframe, and have all the other keyframes hold their positions?
Pretty complex, huh? Shouldn't be, should it?