I have been putting together a modpack (mainly for myself, and possibly for others in the future), and I haven't had too many issues, and those I have had, I have been able to resolve relatively easy, though I've been playing in the world for a bit now, testing things out, adjusting config files as I go, etc, when I came across this crash that keeps repeating itself. I can load the world, and I have enough time to move a block or two, and then the game crashes.
I would initially assume that there is something loading from a mod that hasn't loaded before and is causing the game to crash, but I've been through this area a few times now, and this time it is failing.
Below is a sample of the Crash Report that I think is where the bug is claimed (at least this is the area I've used to resolve most of my issue before):
---- Minecraft Crash Report ----
WARNING: coremods are present:
Quark Plugin (Quark-r1.6-177.jar)
Contact their authors BEFORE contacting forge
// You're mean.
Time: 11/26/20 11:19 AM
Description: Exception in server tick loop
I'm not exactly sure what is going on here, is this is the spot I should be looking at (I can attach the rest of the file as well). From reading this, I assume it is saying that there is an issue loading a chunk, possibly a conflict between Minecraft and Forge?
Though I couldn't find a fml-client-latest log file (I searched through the modpack folder, and the original Minecraft folder, and did some searching online on where it's located, and supposedly it's in the log directory, but haven't been able to find it), here is a copy of the latest log file that I found within the log directory within the modpack directory:
(It requires two links, because I don't have pro version of pastebin.com)