[Anti-Cheat Report] Bad Packets

In Game Name:

XvGwest​

Short title:

Bad Packets​

Minecraft Version:

26.2​

Client and Modifications:

Fabric Loader 0.19.5

Balm [26.2.0.8]
Cloth Config v26.2 [26.2.155]
EntityCulling [1.11.1]
Fabric API [0.161.0+26.2]
Inventory Essentials [26.2.0.4]
Inventory HUD + [3.4.34]
Iris [1.11.4+mc26.2]
MaLiLib [0.29.6]
Mod Menu [20.0.2]
Placeholder API [3.1.0-beta.1+26.2]
Shulker Box Tooltip [5.4.1+26.2]
SignTweaks [2.103.0+26.2]
Sodium [0.9.2+mc26.2]
Xaero's Minimap [26.5.1]
YetAnotherConfigLib [3.9.7+26.2-fabric]​

Which server were you on:

Main​

Which world were you in:

Mining​

What time did the issues and/or kick take place:

00:06​

Code Received:

Bad Packets​

Type1 Received:

7​

Type2 Received:

No Swing​

Ping on kick:

95​

Description of the issue:

kicked when hitting warden with magic axe​

Reproduction instructions:

I had magic armour in shulker box, biome scientist apperal, magic axe.​

How many times did you recreate this:

3​

Video evidence:

​

 

Update: This is also happening on the 26.3 client with any weapon or barehanded, and consistently kicks after roughly 6 hits. I've been able to fight and kill Wardens previously without issues, and no changes have been made to my client-side setup, so this appears to have started within the last few days.



I'm wondering if these backend updates are tripping up Vulcan or the protocol translation layers due to the new input handling and swing animation structures.

My best guess anyways, But who knows.

Changes to swing

• When used on a player, the player's attack strength will no longer be reset
• Added a new optional argument to set the swing animation to play
  • Allowed values: none, whack, stab
  • If omitted, defaults to whack
• Added a new argument to set the duration of the swing animation, if provided
  • Format: positive time value (by default in ticks)
  • If omitted, defaults to 6t

Removed minecraft:swing_animation

• This has been replaced by minecraft:attack_animation and minecraft:interact_animation
  • Setting both of these new components to the same value will be functionally identical to the old component, except for:
    • The /swing command - animation type now specified by the command
    • Items being dropped by entities

Windowing and Input Backend

• Minecraft now uses SDL3 instead of GLFW for window management, input, and platform integration
• Keyboard input now uses SDL scancodes for physical key positions and SDL keycodes for layout-dependent text editing shortcuts

SOURCE:
https://www.minecraft.net/en-us/article/minecraft-java-edition-26-3

 

tested attacking polar bears, all seems good now. no more vulcan kicks and swings are animating, Thank you!

--edit also tested spears and they are correctly using stab animation as well.