immediateResponse=true not working in living documentation

[jimmyjlli]

In the living documentation at https://ui-slider.firebaseapp.com/,
the example in the Basic Usage section is not working after changing Immediate Response to true. It can only slide "one" step and then the mouse and the slider handle breaks apart. i.e. the slider can only slider "one" step, and have to click the handle again to slider another step. It cannot slide more than "one" step.

Strangely, the immediateResponse=true example in the Ticks section doesn't have this issue. I can click on the slider handle and slide all the way to the end without problem.

I am also having similar issue with immediateResponse=true in my usages. It works in some of my sliders but doesn't work on others. Any suggestions?

Thanks