NPC doesn't seem to move when Using :MoveTo?

I made an NPC by clicking play game, copying it, and pasting it into workspace. The thing that's weird is that it doesn't seem to move when using the :MoveTo() command unless i give it a nudge, (There are no errors printing)

script:

local requestnewcords=coroutine.create(function()
    _G.genRandomX=math.random(-10,10)
    _G.genRandomY=math.random(-10,10)
    _G.genRandomZ=math.random(-10,10)
    print(_G.genRandomX,_G.genRandomY,_G.genRandomZ)
    _G.stepTime=_G.genRandomX+_G.genRandomZ/2
end)
local wander=coroutine.create(function()
    local loopCooldown=false
    while wander==true and loopCooldown==false do
        loopCooldown=true   
        coroutine.resume(requestnewcords)
        _G.lastpos=t.CFrame
        wait(math.random(5,10))
        hum:MoveTo(t.Position*Vector3.new(_G.genRandomX,0,_G.genRandomZ))
        loopCooldown=false
    end
end)