Issue Description: Crashing when going around near specific chunks, I went though all mods one by one and it appears when i removed this mod it fixed, I am using a personal modpack. (Mod list is inside of the crash log)

Crash Log: https://pastebin.com/A1HaDRGW

Stay in specific chunks for about 10 seconds = server crash

(i personally loved the idea of this i hope it gets fixed or a solution is found)

• Thutcore: thutcore-1.12.2-5.21.0
• Minecraft: 1.12.2
• Forge: forge-1.12.2-14.23.5.2854

have you tried it on the 1.15.2 or 1.16.4 versions? if the bug still occurs there, let me know and I can try to fix it.

this is most likely caused by Thuts-Mods/ThutCore#3, which is fixed for the new supported versions of the mod

I have not tried newer versions, Dynamic Trees BOP, the mod Thutcore is crashing with, is not updated past 1.12.2.
I was also mistaken and the crash does happen in single player.

As spoken above, Dynamic trees has not updated past 1.12.2 yet, they are working on it though.

I am leaving this open so people will notice it if they have similar issues in outdated versions, the bug is actually caused by thutcore, not this mod, and was fixed in 1.15.2 when Thuts-Mods/ThutCore#3 was posted

Is there any hope for a fix for the 1.12.2 version? If not, you should absolutely mark this problem in big red letters on the curseforge page. I'm not usually one for drastic measures but when the latest release version of a mod (*) is prone to causing fatal (**) crashes in modpacks, that's something I'd like to have known beforehand.

(*) for 1.12.2, which as the last big modding plateau is still quite relevant
(**) especially fatal because not only is it one of the hardest to trace exception types in Minecraft, but it can also prevent you from reentering your world alltogether until the problematic mod is removed

if someone else wants to make the change, send the pull request, compile the file, I guess I would be willing to upload it to the project. I will not do so myself however, as I do not support ancient versions of minecraft.

The offending source is here: https://github.com/Thutmose/Thut/tree/1.12.x/ThutCore and the issue here: Thuts-Mods/ThutCore#3 describes exactly how to fix it

Having EXACT same issue.
Removing dynamic trees fixes as well.
Here is where I have been working through most of it with both of these creators:
DynamicTreesTeam/DynamicTrees#466
DynamicTreesTeam/DynamicTrees-Traverse#1
crash:
crash-2020-11-19_20.44.07-server.txt

Log:

latest.log
Not really using this mod so I'll just remove it...

I have this same crash.

I can reliably reproduce the crash with these mods:
Forge 1.12.2 - 14.23.5.2854
OpenTerrainGenerator-1.12.2-v9.0
Biome_Bundle_O_Plenty-1.12.2_v1.0
BiomesOPlenty-1.12.2-7.0.1.2441-universal
DynamicTrees-1.12.2-0.9.21
DynamicTreesBOP-1.12.2-1.4.4
thutcore-1.12.2-5.21.0
thuttech-1.12.2-6.1.6

To reproduce the crash teleport to a "SwamplandSpooky" biome. When something in that biome generates the game crashes with the ticking world error posted above.

The teleport command is:
/otg tp SwamplandSpooky

This instance of the crash is specifically related to BiomesOPlenty dynamic trees but it is easy to reproduce.

I forgot to mention this crash only happens server side of a dedicated server.