Can't use individual frame frametime override for animated textures

[kittymmeow]

.mcmeta files can have custom frame timings for individual frames that overrides the main frametime property using an object with index and time parameters in the list of frames, but attempting that for SeedQueue textures crashes Minecraft.

https://minecraft.wiki/w/Resource_pack#Texture_animation

Example (frame 1 w/ 20 tick frame time, rest with 4 tick):

{
  "animation": {
    "frames": [
      { "frame": 1, "time": 20 },
      2,
      3,
      4
    ],
    "frametime": 4
  }
}

Crash log excerpt: https://pastebin.com/b218Ndr8

[contariaa]

SeedQueue does not currently support setting frametimes for individual frames, see https://github.com/KingContaria/seedqueue/blob/main/src/main/java/me/contaria/seedqueue/customization/AnimatedTexture.java#L31-L35

However that's not the reason for the crash, it should just fail silently. If I'm not mistaken you should be using "index" instead of "frame".
To recreate the behaviour in SeedQueue you'll have to just add the same frame multiple times, for example:

  "animation": {
    "frames": [
      1,
      1,
      1,
      1,
      1,
      2,
      3,
      4
    ],
    "frametime": 4
  }
}```