My man, you forgot to delete ";" signs after "vel X < 0". This sign deactivates all the stuff that goes after it.

Well, I also noticed one little difference there...
Your last code there have THIS: "p2bodydist Y > -24", while all the stuff like this have THIS: "p2bodydist Y >= -24". Try to change this.

Hmmm... Try to put that last code higher. The positioning of sctrl's also meaningful.

; Walk fwd
[Statedef 20]
type    = S
physics = S
sprpriority = 0

[State 20, 1]
type = VelSet
trigger1 = command = "holdfwd"
x = const(velocity.walk.fwd.x)

[State 20, 2]
type = VelSet
trigger1 = command = "holdback"
x = const(velocity.walk.back.x)

[State 20, ChangeAnim]
type = ChangeAnim
triggerAll = vel x > 0 && p2bodydist Y >= -24
trigger1 = Anim != 20 && Anim != 5
trigger2 = Anim = 5 && AnimElemTime(1) >= 1
value = 20

[State 20, ChangeAnim]
type = ChangeAnim
triggerall = vel x > 0 && p2bodydist Y <= -24
trigger1 = Anim != 25 && Anim != 5
trigger2 = Anim = 5 && AnimTime = 0 ;Turn anim over
value = 25

[State 20, ChangeAnim]
type = ChangeAnim
triggerAll = vel x < 0 && p2bodydist Y >= -24
trigger1 = Anim != 21 && Anim != 5
trigger2 = Anim = 5 && AnimElemTime(1) >= 1
value = 21

[State 21, ChangeAnim]
type = ChangeAnim
triggerAll = vel x < 0 && p2bodydist Y <= -24
trigger1 = Anim != 26 && Anim != 5
trigger2 = Anim = 5 && AnimElemTime(1) >= 1
value = 26

but now i've the same problem about the transition frame.. while with the back walk can be ok, with walk fwd when you coma close to the opponent, the transition frame of the close guard shouldn't appear.. how can i use the elem thing?

[State 0, 1]
type = ChangeAnim
triggerall = p2bodydist X < 70 && p2bodydist Y >= -24
trigger1 = Anim != 2 && Anim != 5
trigger2 = Anim = 5 && AnimTime = 0 ;Turn anim over
value = 2
elem = ifelse((anim = 4 || prevstateno = 20), 2, 1)

Awesome results M206. Your Sagat is starting to look finished. I wonder if you will be interested in adding 3 more taunts
For example Ryu by Phantom.of.the.Server and Mwryly has 4 different taunts depending on what direction you press+taunt button
In a human vs human match the player can utilize the extra taunts and come up with tricks like this below:

In this gif Bryan Fury lifts his knee to mix up. If you ever watch Mr.Naps play Bryan he uses it alot. I can see Sagat using a taunt to look something like a knee fake to trick and get in the opponents head. I love using mind games when it comes to fighting games.
It would be cool to see if you have any animations or dialogue laying around that you didn't use yet.

thanks!!

sprite test: