I have a clip duration is 2.0 seconds.
When I play the clip , I use _skeletonAnimation.UpdateComplete += UpdateEffect; to check if at time 0 I'll create an effect ,  but I logout the time , the list is 
0
0.2
...
1.8
1.9
0
Why at last be 0 ? That made me create the effect twice! :bang:
I don't want to use a flag to limit create , the Updater is running at all ,it will be so complicate to handle A cross B , loop or not loop