[ti]happy[/ti]Help making animated texture not loop

Hello! So I'm currently working on a mod that replaces the "You have suffered Final Death" popup with an animated texture more akin to the animated death popup from Fromsoft games. I've gotten it working and appearing where it's supposed to be, except the animation loops at the end when I want it to simply stop (one thing I feel the need to note is that the first and last frames of my animation are fully transparent). I'm a very new to this so please bare with me. Here is what my VMT looks like in its current form:

UnlitGeneric
{
$basetexture "interface/pop_ups/death"

$translucent 1

$vertexcolor 1
$ignorez 1

Proxies
{
   AnimatedTexture
   {
       animatedTextureVar "$basetexture"
       animatedTextureFrameNumVar "$frame"
       animatedTextureFrameRate 120
   }
}
}
I've tried using material_modify_control and ToggleTexture to no avail but I think that's mostly due to my formatting or because I'm simply implementing them wrong. Some other weirdness to note is that I have animatedTextureFrameRate set to 120 but its clearly playing in game at 60. I know this because setting it to 60 makes it play in slow motion. Additionally here is a Gif demonstrating how this VMT displays the texture in game: imgur.com/a/AsyGIB0

Any help is greatly appreciated, thanks!