Minecraft crashes during loading when Chameleon is installed. Game does not crash when Chameleon is disabled.
Here's the stacktrace:
java.lang.NoSuchFieldError: AIR at com.jaquadro.minecraft.chameleon.resources.ModelRegistry.loadModels(ModelRegistry.java:95) at com.jaquadro.minecraft.chameleon.core.ClientProxy.onModelBakeEvent(ClientProxy.java:33) at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_1256_ClientProxy_onModelBakeEvent_ModelBakeEvent.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.client.ForgeHooksClient.onModelBake(ForgeHooksClient.java:414) at net.minecraft.client.renderer.block.model.ModelManager.onResourceManagerReload(ModelManager.java:30) at net.minecraft.client.resources.SimpleReloadableResourceManager.registerReloadListener(SimpleReloadableResourceManager.java:121) at net.minecraft.client.Minecraft.init(Minecraft.java:513) at net.minecraft.client.Minecraft.run(Minecraft.java:5601) 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:498) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:100) at org.prismlauncher.EntryPoint.listen(EntryPoint.java:129) at org.prismlauncher.EntryPoint.main(EntryPoint.java:70)

Full log here

Can confirm this error. Here is my latest.log.
It is also happening for me only with the version from Modrinth: Chameleon 1.12.2-4.1.3.