i want my balls runs one by one ,when i click the 'play',it's done well but when i click the 'reverse',the ball dose not run,i must click twice, then the ball run~~~ http://codepen.io/bbzz7/pen/raYoJP i think when i click 'reverse',the timeline pause() again,so i must click again... is there any way to run well in 'reverse'? just like them in 'play'~~?