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1.20.4 MovingFlying Packet Mismatch #411

@lucasbooleano

Description

@lucasbooleano

Complete output of the ncp version command (please prefer text here)

> ncp version [13:59:23 INFO]: »Version information« [13:59:23 INFO]: Server: [13:59:23 INFO]: git-Paper-499 ~MC: 1.20.4~ [13:59:23 INFO]: Detected: 1.20.4 [13:59:23 INFO]: NoCheatPlus: [13:59:23 INFO]: Plugin: 3.17.1-SNAPSHOT-Updated-2025_11_08-16_58 [13:59:23 INFO]: MCAccess: 1.13-1.21 / Bukkit-API [13:59:23 INFO]: Features: [13:59:23 INFO]: blocks: BlocksMC1_4, BlocksMC1_5, BlocksMC1_6_1, BlocksMC1_7_2, BlocksMC1_8, BlocksMC1_9, BlocksMC1_10, BlocksMC1_11, BlocksMC1_12, BlocksMC1_13, BlocksMC1_14, BlocksMC1_15, BlocksMC1_16, BlocksMC1_17, BlocksMC1_19, BlocksMC1_20, MCAccessBukkitModern [13:59:23 INFO]: checks: HotFixFallingBlockPortalEnter, AttackFrequency, FlyingFrequency, KeepAliveFrequency [13:59:23 INFO]: defaults: pvpKnockBackVelocity [13:59:23 INFO]: packet-listeners: UseEntityAdapter, MovingFlying, OutgoingPosition, KeepAliveAdapter, SoundDistance, UseItemAdapter, VelocityAdapter, EntityActionAdapter [13:59:23 INFO]: Hooks: AllViolations~NCP~ 1.0, ViolationFrequency~NCP~ 1.1 [13:59:23 INFO]: »Related Plugins« [13:59:23 INFO]: ProtocolLib v5.4.0, ViaVersion v5.5.0

Short description of the issue and how to reproduce (is it random / always happens / side conditions ?)

  1. get latest paper 1.20.4
  2. install latest nocheatplus + latest protocollib
  3. join server

Have you made any (noteworthy) changes to the default configuration of NCP?

  1. default onfig

Do you run any other special plugins that affect game mechanics next to NC+ (skills, machines, adding/changing blocks, other anti-cheating)?

  1. no

Provide additional information: for bypasses, vulnerabilities and reproducible issues, we request a debug log. Use GitHub gists or PasteBin or similar for errors and huge logs, or attach a (zip-) file here.

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