Mass disconnects when locator bar / waypoint packets are enabled (Velocity + Paper setup, multi-node)

[DenisKalimulin]

Hi everyone,
I’ve been trying to debug this issue for about 2 weeks and still can’t find the root cause.

Setup:

• Velocity + Paper backends
• Pterodactyl panel
• Multiple VDS nodes

Problem:
Players randomly get disconnected. From what I see, something is spamming waypoint/locator packets and it eventually breaks the connection.


Important details:

• Happens only on backend servers hosted on a separate VDS (second node)
• Servers on the main node (with Velocity + 2 backends) work fine
• ~30–60 players online
• When gamerule locatorbar true → disconnects increase significantly
• Disabling locator bar reduces crashes, but does not fix them
• A plugin that enables locator bar on a scheduler increases the issue, but is NOT the root cause

What I tried:

• Disabled location/locator bar → no full fix
• Disabled plugins one by one → no result
• Changed core to same version as working servers → no result
• Disabled teleport plugins → no result
• Hoster migrated the VDS to another node → no change
• Made a hotfix plugin blocking waypoint packets → fewer crashes, but problem still exists

Extra symptoms:

• Teleports (/warp, /home, /rtp) sometimes stop working
• Logs show a lot of rapid state changes (e.g. glide events) and high activity before issues

At this point it feels like either:

• packet flood / desync issue
• Velocity ↔ backend communication issue
• or something related to locator bar mechanics in newer versions

Has anyone experienced something similar or has any idea where to look next?


Thanks in advance

 

[ali7913]

Hello! I really hope that you are having a great day, feel free to add me via discord : ali7913