Crash on load in 1.16.4

[MechanosG]

Testing updating to 1.16.4, I get this error on load -

[19:00:03] [main/FATAL]: Mixin prepare failed preparing IdentifierHooks in roughlyenoughresources.mixins.json: org.spongepowered.asm.mixin.transformer.throwables.MixinTargetAlreadyLoadedException Critical problem: roughlyenoughresources.mixins.json:IdentifierHooks target net.minecraft.class_2960 was loaded too early. org.spongepowered.asm.mixin.transformer.throwables.MixinTargetAlreadyLoadedException: Critical problem: roughlyenoughresources.mixins.json:IdentifierHooks target net.minecraft.class_2960 was loaded too early. at org.spongepowered.asm.mixin.transformer.MixinInfo.readDeclaredTargets(MixinInfo.java:938) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinInfo.(MixinInfo.java:872) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinConfig.prepareMixins(MixinConfig.java:715) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinConfig.prepare(MixinConfig.java:648) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinProcessor.prepareConfigs(MixinProcessor.java:514) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinProcessor.select(MixinProcessor.java:439) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinProcessor.checkSelect(MixinProcessor.java:415) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:285) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:208) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:178) ~[sponge-mixin-0.8.2+build.24.jar:0.8.2+build.24+unknown-b24.git-unknown] at org.spongepowered.asm.mixin.transformer.FabricMixinTransformerProxy.transformClassBytes(FabricMixinTransformerProxy.java:23) ~[fabric-loader-0.10.6+build.214.jar:0.8.2+build.24+unknown-b24.git-unknown] at net.fabricmc.loader.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:157) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:150) ~[fabric-loader-0.10.6+build.214.jar:?] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_271] at java.lang.Class.forName0(Native Method) ~[?:1.8.0_271] at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_271] at net.fabricmc.loader.util.DefaultLanguageAdapter.create(DefaultLanguageAdapter.java:45) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.EntrypointStorage$NewEntry.create(EntrypointStorage.java:114) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.EntrypointStorage$NewEntry.getOrCreate(EntrypointStorage.java:101) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.EntrypointStorage.getEntrypointContainers(EntrypointStorage.java:186) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.FabricLoader.getEntrypointContainers(FabricLoader.java:272) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.entrypoint.minecraft.hooks.EntrypointUtils.invoke0(EntrypointUtils.java:44) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.entrypoint.minecraft.hooks.EntrypointUtils.invoke(EntrypointUtils.java:36) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:139) ~[fabric-loader-0.10.6+build.214.jar:?] at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:27) ~[fabric-loader-0.10.6+build.214.jar:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_271] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_271] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_271] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_271] at link.infra.jumploader.Jumploader.onLoad(Jumploader.java:171) ~[?:?] at cpw.mods.modlauncher.TransformationServiceDecorator.onLoad(TransformationServiceDecorator.java:53) ~[?:?] at cpw.mods.modlauncher.TransformationServicesHandler.lambda$loadTransformationServices$11(TransformationServicesHandler.java:131) ~[?:?] at java.util.HashMap$Values.forEach(Unknown Source) [?:1.8.0_271] at cpw.mods.modlauncher.TransformationServicesHandler.loadTransformationServices(TransformationServicesHandler.java:131) [modlauncher-8.0.6.jar:?] at cpw.mods.modlauncher.TransformationServicesHandler.initializeTransformationServices(TransformationServicesHandler.java:56) [modlauncher-8.0.6.jar:?] at cpw.mods.modlauncher.Launcher.run(Launcher.java:76) [modlauncher-8.0.6.jar:?] at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.6.jar:?]

It works in 1.16.3 however. Lemme know if you need any additional information. MC 1.16.4 Fabric 0.6.1.51 loaded via Jumploader Roughly Enough Resources 2.1.2