Coud we see your timeline or could you post your project file?
Here's the modified version:
Here are my edge files if you are able to take a look:
Here's the original ani and files, - the top one:
Thanks very much.
Code is correct but timeline isn't correct.
You can download here the new file: https://www.box.com/s/simhjfjh2ch072roobz5
I changed timeline by dragging and dropping elements [panel1, panel2, panel3, panel4].
wow thanks joel. I didn't realize the timeline would effect playback. appreciate it.