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1.21.10 client on 1.21.11 server: "Failed to decode packet 'clientbound/minecraft:update_mob_effect'" when sitting on a nautilus #1164

@Brokkonaut

Description

@Brokkonaut

'/viaversion dump' Output

https://dump.viaversion.com/07979916b8b303b5fbe0ffd4870e7eb4195ce625e5320227490489ef8b200c8d

Server/Client Error

https://cpaste.de/egegaveked.less

Bug Description

Client is 1.21.10, Server 1.21.11 - When I try to sit on a nautilus i am disconnected with Failed to decode packet 'clientbound/minecraft:update_mob_effect' (see stack trace above)

Steps to Reproduce

  1. Login with 1.21.10 on an 1.21.11 server
  2. Tame a nautilus with pufferfishes
  3. Right click that nautilus to ride on it
  4. -> exception

Additional Server Info

No response

Checklist

  • Via plugins are only running on EITHER the backend servers (e.g. Paper) OR the proxy (e.g. Velocity), not on both.
  • I have included a ViaVersion dump.
  • If applicable, I have included a paste (not a screenshot) of the error.
  • I have tried a build from https://ci.viaversion.com/ and the issue still persists.

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