I would say my biggest problem right now is efficency. The thing that's absolutely KILLING me is trying to figure this scenario out:
Let's say I have an object, and I use a motion tween to animate it around. Great. Now, I want that object to stay at the final location while other stuff happens on the stage. I can't figure out an efficient way to do this. You can't copy individual frames of a tween, and copying and pasting the whole tween and breaking it up into individual frames and then removing all but the last frame is a bit... time-consuming.
Does anyone have any ideas as to how I might be going about using tweens wrong? I feel like I'm just not doing things the way it was designed.
From you description, it sounds like you are using the timeline to create your tween. If your tweened movieClip is disappearing at the end of the tween, you probably need to extend the frames in that layer. If this is not the problem, then please provide a better description or an example file.
If you are tweening in a layer on the Main Timeline on stage, just locate the last frame of the whole animation, then go to that frame number on your concerned tween layer and inser a frame (hit F5). Hope that solves it...