yeah, simple mistake (which is why we like demos ) call() takes 2 additional parameters before position: params and scope   the following code would avoid the error .call(function() {      loop++;      if (loop < 2) {".frame3", 1, {alpha:0});      }    }, [], this, "+=4"); However, you will notice that while the tween in that condition is running, the timeline is already repeating.    I'd sugget putting a call() right before the last tween and have it figure out wh
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