Mojira Archive
MC-275179

Server now kicks players when attempting to send a message with large packet size

The bug

In 1.20.4, when getting a message with too large of a packet size, you receive a shortened version of the message. In 1.21.1, this also happens but you additionally get kicked off the server.

How to reproduce

  1. Start a multiplayer world in 1.20.4 and use a book and quill to fill all 100 pages of a book with speech marks (with copy and paste)
  2. Use creative pick block to fill the first row of a shulker box with these books
  3. Use creative pick block to fill the first row of a chest with these shulkers
  4. Run "/data get block" on the chest
  5. Observer chat message
  6. Update to 1.21.1 and repeat step 4

Video: https://youtu.be/zAN5Iewxurg

Unresolved

Shuddery

2024-08-14, 12:51 PM

2024-08-15, 09:27 AM

1

2

Plausible

Important

Platform

Commands, Networking

1.21.1

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