WeakAuras help

[Mirrikh]

So, I wanted 3D models that show my player and current target over the frame. I found a string for target that (somewhat) works and tried to change the code for player and it (also somewhat) works. I was wondering if, for the target one, anyone knew how to fix a problem I have with it. It seems to break when I switch targets (defaults to the LK model) and certain models appear much lower than others.

(Event Trigger)

function()
    if UnitExists("target") then
        return true
    end
    return false
end

(Untrigger)

function()
    return true
end

(Duration)

function()
    WeakAuras.regions["TargetModel"].region.model:SetUnit("target") 
    return 0,0
end