Looped animation only replicates one iteration, unsure why? please help

localscript

local Mouse = plr:GetMouse()
--removed checks to keep this short

local animation = script.Tag
local animTrack = hum:LoadAnimation(animation)
animTrack.Looped=true

Mouse.Button1Down:connect(function()
    animTrack:Play()
    script.AnimationHandler:FireServer(true) --fires remoteevvent
end)

Mouse.Button1Up:connect(function()
    animTrack:Stop()
    script.AnimationHandler:FireServer(false) --fires remoteevvent
end)

remoteevent

repeat wait() until script.Parent.Parent.Parent.Parent.Character~=nil
local hum = script.Parent.Parent.Parent.Parent.Character:WaitForChild("Humanoid")

local animTrack = hum:LoadAnimation(script.Parent.Parent.Tag)
animTrack.Looped=true 

script.Parent.OnServerEvent:connect(function(plr,playing)

    if playing==true then
    animTrack:Play()
    else
    animTrack:Stop()
    end

end)