Zero-duration tweens are the bane of my existence. 😬 They're tricky to deal with because technically the start and end values are exactly on top of each other. Like...the playhead literally can't move anywhere on a zero duration tween, so heuristics must be used to try to discern direction. I think I've got it nailed in the next release though.    See the Pen 395c1ff0afeb747dc85e52df7f0a7f5c?editors=0010 by GreenSock (@GreenSock) on CodePen   B