Marquee animation jumping/restarting

[coltonA]

Hello,

 

I have a marquee effect using timelines and I keep noticing this weird bug where the marquee jumps every now and them and I can't figure out why. I attached a simplified bare bones codepen of what I have. 

 

It's a little complicated (luckily not so much with Greensock) but I need the marque to infinitely scroll horizontally, when the user scrolls down the marquee reverses its direction and speeds up a little, once the user stops scrolling the direction and speed return to the original values. And when the user is scrolling up the marquee speed increases. 

 

Any help would be appreciated, thank you!

See the Pen wvpeONg by almaraz333 (@almaraz333) on CodePen

[GreenSock]

These threads may be helpful, as they deliver more robust solutions that let you reverse direction, speed up, slow down, etc.: 

 

 

[coltonA]

Thank you so much!!