Wow this Auto test/bug report is awesome thanks for making that. Also thanks on the compliments, it means a lot to me.
No Problem Glad that helped
Now here is the problem with using the YVector.
Like I said earlier in the post, I had gotten the jumping to work with the Y vector just like you have in your "Capx Clean with the Fix"
The new problem now is that the player interacts funny with moving solids. Which is unacceptable with a platformed game.
O Yeah, I did read your First comments about "VectorY" but strangely it didn't do any behaviour like that with me, testing against the Big platform moving at the Left from the original Capx.
But you Right Looking at your Last Capx there is a big problem here, at last, you notice on the smaller Moving platforms when you stand on the edges the Player gets Pushed away when it Jumps.
I manage to replicate the Bug in AutoMode here is the Capx you should report both Bugs to them and see what they gonna tell you, I'm pretty sure they will quick Fix them if they count them as a Bug.
https://www.dropbox.com/s/92zmy305xajs1vn/JumpBug%20PushOut%20Of%20Solids.capx?dl=0