Help Traktor S4 Crossfader Problem!

Help Traktor S4 Crossfader Problem!

Whenever I push my crossfader all the way to the right it start moving back to the left. This only happens when I push it all the way to the right. If I push it to the right it will stay until I reach all the way to the end. I tried recalibrating. Can anyone help me out?

Heres a video of the problem

Smashed the crossfader to the right, fixed

Sounds like it is dirty though. Clean it up with some Fader-X/Deoxit.