Describe the bug
A clear and concise description of what the bug is.
When user joins 1.8.8 server with 1.15.2 version (only with 1.15 and 1.8 has been tested) and tries to hit mob user will get kicked out with reason lost connection: Internal Exception: java.io.IOException: Broken pipe
To Reproduce
Steps to reproduce the behavior:

1. Go to '1.15.2 version in 1.8.8 server'
   hit mob and you will get kicked with reason lost connection: Internal Exception: java.io.IOException: Broken pipe there isnt any other errors

Version Info
Provide your ProtocolLib install info with /protocol dump through pastebin.
https://pastebin.com/3WHWveC6

Additional context
Add any other context about the problem here.
Server version 1.8.8, taco spigot fork - atomspigot

Try using ProtocolLib 3.6.5 from here: https://www.spigotmc.org/resources/protocollib.1997/history

and let me know if it still happens