version 1.20.1
seems to be something related to a position i left the game in.

When

• Joining a world
• Enter third person
• Some situation

Crash report

java.lang.ClassCastException: class net.minecraft.class_4618 cannot be cast to class net.minecraft.class_4597$class_4598 (net.minecraft.class_4618 and net.minecraft.class_4597$class_4598 are in unnamed module of loader org.quiltmc.loader.impl.launch.knot.KnotClassLoader @72035809)
at net.minecraft.class_761.handler$cdk000$leawind_third_person$renderEntity_tail(class_761.java:30943)
at net.minecraft.class_761.method_22977(class_761.java:1575)
at net.minecraft.class_761.method_22710(class_761.java:1324)
at net.minecraft.class_757.method_3188(class_757.java:1110)
at net.minecraft.class_757.method_3192(class_757.java:880)
at net.minecraft.class_310.method_1523(class_310.java:1219)
at net.minecraft.class_310.method_1514(class_310.java:802)
at net.minecraft.client.main.Main.main(Main.java:250)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.quiltmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:557)
at org.quiltmc.loader.impl.launch.knot.Knot.launch(Knot.java:84)
at org.quiltmc.loader.impl.launch.knot.KnotClient.main(KnotClient.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)

Seems to be something related to tailing a entity... not sure?

Maybe it has been fixed in the latest 2.0.8-1.20.1
Could you update and try again see see?

Seems to be fixed

It's fixed in ff3dac8