Hi, I don´t know exactly your problem, but if you put trigger once or key A,B.C...the keys that you use in the platformer and invert or both possibilities , it will probably work.
dont understand :/
The problem is ' the jump is depending of the framerate "
I use simulate jump from Platform behavior. It should not have this kind of problem
60 fps is like jumping at 100px
30 fps 50 px
144 fps 150 px