SurvivalFly false positive when "hopping" with elytra

[Lumiakun]

Full output of /ncp version
[08:18:19 INFO]: ---- Version information ----
[08:18:19 INFO]: #### Server ####
[08:18:19 INFO]: git-Tuinity-"54d751f" MC: 1.15.2
[08:18:19 INFO]: detected: 1.15.2
[08:18:19 INFO]: #### NoCheatPlus ####
[08:18:19 INFO]: Plugin: 3.17-SNAPSHOT-b1153-CustomFork
[08:18:19 INFO]: MCAccess: 1.13.2-1.15|? / Bukkit-API
[08:18:19 INFO]: Features:
[08:18:19 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 | MCAccessBukkitModern
[08:18:19 INFO]: checks: FastConsume | Gutenberg | HotFixFallingBlockPortalEnter | AttackFrequency | FlyingFrequency | KeepAliveFrequency
[08:18:19 INFO]: defaults: pvpKnockBackVelocity
[08:18:19 INFO]: packet-listeners: UseEntityAdapter | MovingFlying | OutgoingPosition | KeepAliveAdapter | SoundDistance | WrongTurnAdapter | NoSlow | Fight
[08:18:19 INFO]: Hooks: ViolationFrequencyNCP 1.0
[08:18:19 INFO]: #### Related Plugins ####
[08:18:19 INFO]: ProtocolLib v4.5.0

Describe the issue
When attempting to "hop" with an elytra, the anti cheat thinks you are attempting to fly.

This is what it looks like when NCP blocks the hopping: https://youtu.be/hpFXzvaasrY

This is how hopping looks when NCP isnt blocking: https://youtu.be/1yL04sYEEF0

How to reproduce the issue
Sprint forward and jump with your elytra, once your gliding double tap space again just as you hit the ground.

Extra links/Videos (Including debug logs)
Debug log: https://pastebin.com/sUbj0wbT

Any possible config options changed or plugins that may cause interference?
Using MarkElfs config, but that should not be creating this issue as it's NCP detecting the hopping as flight.

[CaptainObvious0]

I'm able to reproduce the issue, but not in the same frequency as you. After about ~30 seconds of hopping around I would eventually get flagged, but possibly for a different issue. The issue I'm seeing is the server doesn't think the player is gliding but the client thinks they are, so it checks the player for SurvivalFly.

Your debug log seems to be missing a lot of information. Do you have creativefly enabled or at least debug enabled? I don't see anything in that debug log for creativefly, and creativefly will help with the transition between gliding and not gliding. The debug log also has only one flag/setback. Make sure that you clear the debug log, start debugging the player, and then reproduce the issue.

[CaptainObvious0]

Although I don't have any information regarding what is flagging, I can assume this issue is related to #9 , which has been fixed (or attempted to). If the issue continues please reply on that ticket.