https://paste.ee/p/TwVc0

Happens in either sp or mp, but only occurs some times and not others

https://paste.ee/p/77ByX <-- wagyourtail, same circumstances

I've never had this happen to me, so I don't know what could be causing this. It feels like it could almost be a duplicate of #91

Thing is this is happening after launch, multiplayer was never entered on either trace

I don't know if you need this still but I have 8 crash reports of them now.
getEntry1.txt
getEntry2.txt
getEntry3.txt
getEntry4.txt
getEntry5.txt
getEntry6.txt
getEntry7.txt
getEntry8.txt

A couple more crash reports that people have experienced:

• ramidzkh: https://cdn.discordapp.com/attachments/703364312915509249/777308835760439326/crash-2020-11-12_17.28.03-server.txt
• Kichura: https://github.com/jellysquid3/lithium-fabric/files/5573740/lithium_crash.log

So far it looks like the common theme between them is that they are ID 0. If anyone else experiences this please reply with their crash log. The more crash logs we can get the better.

Probably unrelated to #122.

Another instance of the crash from skyrising from before multiconnect reported the data tracker ID: https://cdn.discordapp.com/attachments/703364312915509249/777169072797909012/crash-2020-09-20_16.08.21-client.txt

All the crashes are indeed from singleplayer.

dispelling the ID 0 theory.
crash-2020-11-20_14.45.55-server.txt

A couple more crash reports that people have experienced:

• ramidzkh: https://cdn.discordapp.com/attachments/703364312915509249/777308835760439326/crash-2020-11-12_17.28.03-server.txt
• Kichura: https://github.com/jellysquid3/lithium-fabric/files/5573740/lithium_crash.log

So far it looks like the common theme between them is that they are ID 0. If anyone else experiences this please reply with their crash log. The more crash logs we can get the better.

About my crash report (Earth asked me to comment this here), This issue may seem reproducable by combining the "mixin.world.mob_spawning" string from false to true via lithium properties + using latest multiconnect whilst exploring a new world via singleplayer until a crash based of broken health or other entity tick trigger occurs.

Although based of my additional context, This issue also seems to be rare in some conditions although it's trying to "blame lambdynamiclights for it" aswell but i just can't confirm it + The crash also changes to any entity such as pigs and whatnot.

CaffeineMC/lithium-fabric#169 - Original comment of mine if this isn't really quite enough.

I don't know if it's the same thing but from what I can read it's very similar so here it goes:
https://paste.ee/p/M6osa
https://paste.ee/p/qkdhg