What was the purpose of this:

Code:

[State 181, Begin]
type = Velset
trigger1 = animelem = 1
y = 0

To debug this you can start by disabling things with Null and see what happens. This is is classic case of trial and error.

I'm not sure what you mean by that. Gravity should only trigger when your pos y<0. VelSet should only be one tick long. That's why from the very beginning I was talking about using time triggers for the jump velset. The PosSet should only have a trigger of pos y > 0 so that you reset your position when you're below the ground. There should be a VelSet above it to stop your Velocity.

Code:

[StateDef ****]
type = S
movetype = I
physics = N

[State ****, Jump]
type = VelSet
trigger1 = animelem = 3 && vel y=0
y = const(velocity.jump.y)

[State ****, Gravity]
type = Gravity
trigger1 = pos y < 0

[State ****, Reset Vel]
type = VelSet
trigger1 = pos y>0
y = 0

[State ****, Reset Pos]
type = PosSet
trigger1 = pos y>0
y = 0

That should be all there is to it. I'm not sure why  it's causing you so much trouble.

[State 181, Gravity]
type = VelSet
trigger1 = pos y > 0 && vel y > 0
y = 0

[State 181, Prevent going through floor]
type = PosSet
trigger1 = pos y > 0 && vel y > 0
y = 0

[State 181, Gravity]
type = VelSet
trigger1 = pos y > 0 && vel y > -2
y = 0

[State 181, Prevent going through floor]
type = PosSet
trigger1 = pos y > 0 && vel y > -2
y = 0