Hi all,
A playback animation added to a timeline will syncs with that timeline (except playback animations of elements show across multiple scenes). It means that if the timeline pauses, changes speed or jumps to another timestamp, the symbol/media with the playback animation will pause, change speed, or jump accordingly.
In Locky’s sample, the main timeline of the main document completes and pauses at the end of the playback animation. It makes the symbol pause so the symbol doesn’t loop. If you add a label or another animation to extend the main document timeline duration, you’ll see the symbol loop and pause at the new end time.
To make an infinite loop, you can use the symbol Autoplay property, or add a trigger at the start of the main document timeline to start the symbol.
Because when you convert the element to symbol, Create Playback option is selected by default. So don’t select this option as mackavi pointed out.
You should at a trigger at the start of the main timeline to start the boxFade_TL timeline. Don’t use Play event because this event will be trigger each time the main timeline changes its state from pausing to playing.
Regards