Entity Will Not Move Despite Changing its Vector or Using "Push" Effect

[Checkmate128]

I am attempting to have one entity move towards another one. I have tried using the "push" event and directly modifying its vector but the entity will not move. Even teleporting the entity forwards will not move it. Can anyone explain why it will not move?

if {%loop-zombie%.state} is 4:
  broadcast "Should be moving toward %{%{%loop-zombie%.target}%.checkpointValue}%"
  set {_vector} to vector from location at loop-zombie and location at {%loop-zombie%.target}
  set vector length of {_vector} to 5
  set loop-zombie's velocity to {_vector}
  if distance between loop-zombie and {%loop-zombie%.target} is less than 1:
    set {%loop-zombie%.checkpoint} to {%{%loop-zombie%.target}%.checkpointValue}
    set {%loop-zombie%.state} to 3

This code runs inside a loop that loops through all zombies and has already checked to ensure that this is the zombie that is supposed to be moving and that the target is alive and exists. The entity has many attributes such as NoAI but none of those would seem to explain why it cannot be pushed or teleported. Thank you in advance!

[Checkmate128]

I found a solution using some math so y'all can close this I guess.

if {%loop-zombie%.state} is 4:
  broadcast "Should be moving toward %{%{%loop-zombie%.target}%.checkpointValue}%"
  set {_vector} to vector from location at loop-zombie and location at {%loop-zombie%.target}
  set vector length of {_vector} to 0.5
  set {_x} to loop-zombie's x-coordinate
  set {_y} to loop-zombie's y-coordinate
  set {_z} to loop-zombie's z-coordinate
  add x component of {_vector} to {_x}
  add y component of {_vector} to {_y}
  add z component of {_vector} to {_z}
  teleport loop-zombie to position at {_x}, {_y}, {_z} in loop-zombie's world
  if distance between loop-zombie and {%loop-zombie%.target} is less than 1:
    set {%loop-zombie%.checkpoint} to {%{%loop-zombie%.target}%.checkpointValue}
    set {%loop-zombie%.state} to 3