Don't know what EntityType: CREAKING_TRANSIENT was at protocol 768

[GuenaVaria]

Describe the bug
[10:15:59 WARN] [Protocolize]: Don't know what EntityType: CREAKING_TRANSIENT was at protocol 768

To Reproduce
Steps to reproduce the behavior:

1. Go to start proxy server.
2. On console, you'll see the warn after "Swapped channel initializers" info of protocolize

Expected behavior
Actually there's no problem in the game. Just the console warn.

Screenshots

Proxy environment
velocity-3.4.0-SNAPSHOT-497

Minecraft versions used
Paper 1.20.1