Vector Timeline Slow down new time?

I have a timeline vector raising a simple platform after a collision event.
I want to make it go down slower by changing the time when the off collision event occurs, because currently when I jump up, it goes down too fast.

Problem is, when I try to use a sequence to make it go down, set new time, the platform just disappears.

How do I make it so when collision ends, the platform changes its reversal speed?

The timeline is a component, you can slow it down with ‘set play rate’.

Might help to show your code…