playShoulderEntityAmbientSound client crash with 1.12.2 Forge

[KyleCG]

First reported on GitHub: https://github.com/MinecraftForge/MinecraftForge/issues/4764

This crash is not very common and due to that, almost impossible to reproduce.

This crash affects some mc networks, not just us.
Things we all have in common:

BungeeCord 1.12.2 or HexaCord 1.12.2, not older than a month.
A spigot hub. Can be 1.11.2 or 1.12.2, the version doesn't seem to be important
A Sponge-Forge 1.12.2 server with either Pixelmon or Direwolf20 installed.

A 1.12.2 Forge client with either Pixelmon or Direwolf20 installed

How to reproduce:
Login via BungeeCord on your spigot lobby server.
Now use /server pixelmon or /server direwolf to switch to pixelmon or direwolf
(Try to be lucky)

We are not sure if SpongeForge is the issue, but we don't think so as it's a client crash and we don't get an error serverside. We can't really test without Sponge,as this error is not occuring that often.

Now, your client can crash with a small chance with the following error:
EntityPlayer.func_192028_j
https://pastebin.com/CcywjKzt
https://pastebin.com/P5ASABrU

We weren't able to discover a pattern in these crashlogs.

Attached are some guesses as to what may be the underlying cause.

Again, thank you for taking time to look at this, and I hope to hear back from you soon.

fml-client-latest.log

Edited February 22, 2018 by KyleCG
Added GitHub Link

[KyleCG]

Forgive me if i misunderstand, but this isn't possible as the direwolf20 and pixelmon modpack don't have mods in common and it happens with both packs. Nevertheless would it be possible to receive support in debugging this. Or will this just be closed?

[I9hdkill]

Here is one with Direwolf20
https://pastebin.com/sdTQ9Ga2

We have hundreds of serverswitches to non Forge servers a day and it does not happen.

Can bungee somehow cause that when bungee  tries to connect people to forge servers?

md5 said bungee is not touching sounds, but it touches entity ids if I am not wrong

 

 

Edited February 22, 2018 by I9hdkill

[I9hdkill]

Is the first Exception somehow helpful to identify the issue?
https://pastebin.com/4sj5bDKU

Edited February 27, 2018 by I9hdkill