With Minecraft 1.16.5, Fabric Loader 0.11.1, Fabric API 0.30.3+1.16 I cannot connect to BungeeCord servers (tried cubecraft.net).

After encrypting, I am disconnected with the error being

[Netty Epoll Client IO #0/WARN]: Received invalid channel identifier "BungeeCord" from connection net.minecraft.class_2535@2e55d77f
net.minecraft.class_151: Non [a-z0-9/._-] character in path of location: minecraft:BungeeCord

#181 is back

only appears when hydrogen is used.

I was unable to reproduce this with just fabric installed. It does log a warning to the console, but I was able to plan on cubecraft just fine.

Closing this as it doesn't seem to be a fabric API issue after all.