Jump looking better. Seems we made gravity optional by relative movement in y axis and desired movement never being set to down.

src/actors/players/playerE/PlayerE-Movement_StateReceiver.gd

@@ -47,6 +47,7 @@ func wants_jump() -> bool:
 		return true
 	else:
 		_wants_jump = false
+		desired_movement_vector.y = DOWN
 		return false
 
 var _wants_crouch :bool

src/actors/players/playerE/states/fall.tres

@@ -10,7 +10,7 @@ debug_state = false
 timeout_seconds = 0.0
 name = "fall"
 speed_start = Vector2( 90, 1.36422e-12 )
-speed_end = Vector2( 90, -1000 )
+speed_end = Vector2( 90, 1000 )
 min_acceleration = Vector2( 0, 0 )
 acceleration = Vector2( 0, 280 )
 max_acceleration = Vector2( 0, 0 )