-M- Level

Interesting design. I'm just stuck and the last slider...

From your design there's some behavior of the sliders that I don't understand. As an example, going to the first slider along its axis doesn't work, but by its side, yes. with the second slider there is no problem and with the final one there is again Strange behavior of the slider one more time...

It's a bug where you will never walk on the original place of the slider with rail (first that the level begins)
Try this

Thanks @meko, I have understood now (and wasn't aware of that). So the only thing to do on this level to make it work is to reverse the position of the last slider.