hook.Remove("HUDPaint", "name") in a timer makes the material flickering?

[Trackster]

So i have this simple function to let a material be on the players screen, and after 5 seconds dissapear again

local function falldmg()
    hook.Add("HUDPaint", "Assistantfalldmg", function()
        local fall = Material( "falldamage.vmt" )
        surface.SetMaterial( fall )
        surface.SetDrawColor( 255, 255, 255 )
        surface.DrawTexturedRect( 20, ScrH()/2, 200, 100 )
    end)
    timer.Simple(5,function() hook.Remove("HUDPaint", "Assistantfalldmg") end)
end
when theres no timer it never gets shown, since the hook gets created and instantly gets removed again. Makes sense...but when i put it in a timer to 5 seconds so the material dissapears after 5 seconds, what happens instead is that the material starts flickering as if would fight about being drawn or not drawn...its really weird and i dont know why?

On a other addon i already did the same, make a HUDPaint element, and remove it after a certain time with a timer. And it worked fine. Both materials are VTF files, both are animated. All the same. (the one that worked and this problem now) So what the hell is going on?

[bigdogmat]

Where are you calling `falldmg`.

[Trackster]

Oh lol. Your question was the answer XD To answer your question i wanted to copy paste the moment the function gets called. I noticed that this whole thing was still in a HUDPaint hook, which i had there in a older version. Forgot to remove it..the one hook started the falldmg() the whole time, while the over removed it self. Which resulted in the flickering/fighting if it stays or not...alright i feel retarted now..but i also probably would never have realized if i wouldnt have checked again..