[1.20.1] Crash with Dynamicresources

[ModernGamingWorld]

Checklist

• I am reporting a defect, not asking for help
• I have searched existing issues and this has not been reported
• I have reduced my mod list to the minimum required to reproduce this issue (see below)

Bug Description

Hi there, Embeddedt. I have recently updated all my mods that need to be updated in my current custom modpack, and now my modpack crashes and blames dynamic resources being enabled. The only thing I can guess is the latest version of JEI caused this because JEI did backport a lot of changes from 1.21, and lately mod devs backporting changes from 1.21.1 have been causing issues. Idk if this is the issue or something else. But I figured the best place was to bring the issue here with hopes of any answer on what's going on.

Minimal Mod List

This would be hard for me to do. Since my modpack has over 700ish mods

Reproduction Steps

1. Update all the current mods in my custom modpack
2. Launch said modpack after updating the mods that I could.
3. Then it crashed to desktop with an error saying Dynamicresources is to blame

Diagnostic Info

debug.log

latest.log

[MarioSMB]

Just a heads up, the "Reproduction Steps" are steps for the developer to be able to reproduce your issue in their testing environment, not the actions you took that led to it breaking.

Regardless, the log reveals quite a few errors, with the likely crash culprit being a ConcurrentModificationException error from the mod Handcrafted:

[net.minecraftforge.fml.javafmlmod.FMLModContainer/LOADING]: Failed to create mod instance. ModID: handcrafted, class earth.terrarium.handcrafted.forge.HandcraftedForge
org.spongepowered.asm.mixin.throwables.MixinException: java.util.ConcurrentModificationException
	at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:294) ~[mixin-0.8.5.jar:0.8.5+Jenkins-b310.git-155314e6e91465dad727e621a569906a410cd6f4]
	at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:250) ~[mixin-0.8.5.jar:0.8.5+Jenkins-b310.git-155314e6e91465dad727e621a569906a410cd6f4]
	at org.spongepowered.asm.service.modlauncher.MixinTransformationHandler.processClass(MixinTransformationHandler.java:131) ~[mixin-0.8.5.jar:0.8.5+Jenkins-b310.git-155314e6e91465dad727e621a569906a410cd6f4]
	at org.spongepowered.asm.launch.MixinLaunchPluginLegacy.processClass(MixinLaunchPluginLegacy.java:131) ~[mixin-0.8.5.jar:0.8.5+Jenkins-b310.git-155314e6e91465dad727e621a569906a410cd6f4]
	at cpw.mods.modlauncher.serviceapi.ILaunchPluginService.processClassWithFlags(ILaunchPluginService.java:156) ~[modlauncher-10.0.9.jar:10.0.9+10.0.9+main.dcd20f30]
	at cpw.mods.modlauncher.LaunchPluginHandler.offerClassNodeToPlugins(LaunchPluginHandler.java:88) ~[modlauncher-10.0.9.jar:?]
	at cpw.mods.modlauncher.ClassTransformer.transform(ClassTransformer.java:120) ~[modlauncher-10.0.9.jar:?]
	at cpw.mods.modlauncher.TransformingClassLoader.maybeTransformClassBytes(TransformingClassLoader.java:50) ~[modlauncher-10.0.9.jar:?]
	at cpw.mods.cl.ModuleClassLoader.readerToClass(ModuleClassLoader.java:113) ~[securejarhandler-2.1.10.jar:?]
	at cpw.mods.cl.ModuleClassLoader.lambda$findClass$15(ModuleClassLoader.java:219) ~[securejarhandler-2.1.10.jar:?]
	at cpw.mods.cl.ModuleClassLoader.loadFromModule(ModuleClassLoader.java:229) ~[securejarhandler-2.1.10.jar:?]
	at cpw.mods.cl.ModuleClassLoader.findClass(ModuleClassLoader.java:219) ~[securejarhandler-2.1.10.jar:?]
	at cpw.mods.cl.ModuleClassLoader.loadClass(ModuleClassLoader.java:135) ~[securejarhandler-2.1.10.jar:?]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:490) ~[?:?]
	at earth.terrarium.handcrafted.Handcrafted.init(Handcrafted.java:10) ~[?:?]
	at earth.terrarium.handcrafted.forge.HandcraftedForge.<init>(HandcraftedForge.java:12) ~[?:?]
	at jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62) ~[?:?]
	at java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) ~[?:?]
	at java.lang.reflect.Constructor.newInstance(Constructor.java:483) ~[?:?]
	at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:77) ~[?:?]
	at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$5(ModContainer.java:126) ~[?:?]
	at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1825) ~[?:?]
	at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1817) ~[?:?]
	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:511) ~[?:?]
	at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1450) ~[?:?]
	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:2019) ~[?:?]
	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:187) ~[?:?]
Caused by: java.util.ConcurrentModificationException
	at java.util.LinkedHashMap$LinkedHashIterator.nextNode(LinkedHashMap.java:1024) ~[?:?]
	at java.util.LinkedHashMap$LinkedKeyIterator.next(LinkedHashMap.java:1047) ~[?:?]
	at org.spongepowered.asm.mixin.Mixins.getUnvisitedCount(Mixins.java:143) ~[mixin-0.8.5.jar:0.8.5+Jenkins-b310.git-155314e6e91465dad727e621a569906a410cd6f4]
	at org.spongepowered.asm.mixin.transformer.MixinProcessor.checkSelect(MixinProcessor.java:442) ~[mixin-0.8.5.jar:0.8.5+Jenkins-b310.git-155314e6e91465dad727e621a569906a410cd6f4]
	at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:290) ~[mixin-0.8.5.jar:0.8.5+Jenkins-b310.git-155314e6e91465dad727e621a569906a410cd6f4]
	... 26 more

Haven Ex Deorum Expansion appears to need their JEI support updated as well given the error: Failed to load: net.cathienova.havenede.compat.JEIHavenAlchemyPlugin
You'll probably have to do some focus testing by removing erroring mods - including seeing if the crash is reproducible with dynamic resources turned off, if you haven't already.

That said, there's hundreds of errors in that log and it's going to be hell for mod developers to debug given the insane amount of mods you have installed, but hopefully that points you in the right direction.