ver 5.6 array index out of bounds exception on server

[DubDub2011]

Version: loliasm-5.6

Reporting for a friend, don't have full access to logs and issue has been resolved after reinstalling, but thought I'd log an issue in case it can be found and fixed.

Game crashed while playing on a multiplayer server. Retried joining the server, while joining game crashed with the same issue. After reinstalling the pack (1.12.2 pack), the issue was resolved.

java.lang.ArrayIndexOutOfBoundsException: 1
    at java.util.ArrayList.clear(ArrayList.java:558)
    at zone.rong.loliasm.client.sprite.FramesTextureData.clear(FramesTextureData.java:74)
    at net.minecraft.client.renderer.texture.TextureAtlasSprite.clearFramesTextureData(TextureAtlasSprite.java:374)
    at pl.asie.foamfix.client.FastTextureAtlasSprite.clearFramesTextureData(FastTextureAtlasSprite.java:249)
    at zone.rong.loliasm.client.sprite.FramesTextureData.onClientTick(FramesTextureData.java:28)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_2642_FramesTextureData_onClientTick_ClientTickEvent.invoke(.dynamic)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
    at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
    at net.minecraftforge.fml.common.FMLCommonHandler.onPostClientTick(FMLCommonHandler.java:349)
    at net.minecraft.client.Minecraft.runTick(Minecraft.java:1911)
    at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1098)
    at net.minecraft.client.Minecraft.run(Minecraft.java:7114)
    at net.minecraft.client.main.Main.main(SourceFile:123)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

I've got a bit of programming experience and I found it surprising it was the library method chucking the exception. I've had a quick look, and looks like this might be related to the issue: https://stackoverflow.com/a/69280975/9822528

If the issue isn't obvious I'd recommend just closing this issue.

[embeddedt]

This is most likely already solved in 5.14; I rewrote a chunk of FramesTextureData a while back because of the concurrency problems.