I've gotten this crash about 3 times by this point. It's not consistent by my experience, seems to happen at random or with blocks breaking.
[14:33:09] [Render thread/WARN]: Neruina caught an exception, see below for cause
java.lang.NullPointerException: Cannot invoke "java.util.WeakHashMap.getOrDefault(Object, Object)" because the return value of "java.util.concurrent.ConcurrentHashMap.get(Object)" is null
at knot/io.github.apace100.apoli.power.type.ModifyEnchantmentLevelPowerType.getEnchantments(ModifyEnchantmentLevelPowerType.java:125) ~[apoli-2.12.0-pre.1+mc.1.21.1-26fce2aad231ac54.jar:?]
at knot/io.github.apace100.apoli.power.type.ModifyEnchantmentLevelPowerType.getAndUpdateModifiedEnchantments(ModifyEnchantmentLevelPowerType.java:144) ~[apoli-2.12.0-pre.1+mc.1.21.1-26fce2aad231ac54.jar:?]
at knot/net.minecraft.class_1890.wrapOperation$zpf000$apoli$modifyEnchantmentsOnLevelQuery(class_1890.java:2119) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1890.method_8225(class_1890.java:52) ~[client-intermediary.jar:?]
at knot/io.wispforest.affinity.enchantment.AbsoluteEnchantmentLogic.hasCompleteArmor(AbsoluteEnchantmentLogic.java:21) ~[affinity-0.1.13+1.21.1.jar:?]
at knot/io.wispforest.affinity.enchantment.GravecallerEnchantmentLogic.lambda$initialize$1(GravecallerEnchantmentLogic.java:47) ~[affinity-0.1.13+1.21.1.jar:?]
at knot/io.wispforest.affinity.misc.callback.LivingEntityTickCallback.lambda$static$0(LivingEntityTickCallback.java:11) ~[affinity-0.1.13+1.21.1.jar:?]
at knot/net.minecraft.class_1309.handler$zhf000$affinity$onTickEnd(class_1309.java:9880) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1309.method_5773(class_1309.java:2595) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1657.method_5773(class_1657.java:312) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_742.method_5773(class_742.java:59) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_746.method_5773(class_746.java:221) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_638.mixinextras$bridge$method_5773$172(class_638.java) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_638.wrapOperation$khb002$porting_lib_entity$preEntityTick(class_638.java:11124) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_638.method_18646(class_638.java:278) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1937.mixinextras$bridge$accept$198(class_1937.java) ~[client-intermediary.jar:?]
at knot/com.bawnorton.neruina.handler.TickHandler.safelyTickEntities(TickHandler.java:113) ~[neruina-3.2.1+1.21.1-fabric.jar:?]
at knot/net.minecraft.class_1937.wrapOperation$ikk000$neruina$catchTickingEntities$notTheCauseOfTickLag(class_1937.java:9584) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1937.method_18472(class_1937.java:498) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_638.method_32124(class_638.java:261) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_5574.method_31791(class_5574.java:54) [client-intermediary.jar:?]
at knot/net.minecraft.class_638.method_18116(class_638.java:257) [client-intermediary.jar:?]
at knot/net.minecraft.class_310.method_1574(class_310.java:1956) [client-intermediary.jar:?]
at knot/net.minecraft.class_310.method_1523(class_310.java:1246) [client-intermediary.jar:?]
at knot/net.minecraft.class_310.method_1514(class_310.java:882) [client-intermediary.jar:?]
at knot/net.minecraft.client.main.Main.main(Main.java:256) [client-intermediary.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:514) [fabric-loader-0.18.4.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72) [fabric-loader-0.18.4.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) [fabric-loader-0.18.4.jar:?]
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:105) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:129) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.main(EntryPoint.java:70) [NewLaunch.jar:?]
2026-02-20-2.log.gz
I've gotten this crash about 3 times by this point. It's not consistent by my experience, seems to happen at random or with blocks breaking.
[14:33:09] [Render thread/WARN]: Neruina caught an exception, see below for cause
java.lang.NullPointerException: Cannot invoke "java.util.WeakHashMap.getOrDefault(Object, Object)" because the return value of "java.util.concurrent.ConcurrentHashMap.get(Object)" is null
at knot/io.github.apace100.apoli.power.type.ModifyEnchantmentLevelPowerType.getEnchantments(ModifyEnchantmentLevelPowerType.java:125) ~[apoli-2.12.0-pre.1+mc.1.21.1-26fce2aad231ac54.jar:?]
at knot/io.github.apace100.apoli.power.type.ModifyEnchantmentLevelPowerType.getAndUpdateModifiedEnchantments(ModifyEnchantmentLevelPowerType.java:144) ~[apoli-2.12.0-pre.1+mc.1.21.1-26fce2aad231ac54.jar:?]
at knot/net.minecraft.class_1890.wrapOperation$zpf000$apoli$modifyEnchantmentsOnLevelQuery(class_1890.java:2119) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1890.method_8225(class_1890.java:52) ~[client-intermediary.jar:?]
at knot/io.wispforest.affinity.enchantment.AbsoluteEnchantmentLogic.hasCompleteArmor(AbsoluteEnchantmentLogic.java:21) ~[affinity-0.1.13+1.21.1.jar:?]
at knot/io.wispforest.affinity.enchantment.GravecallerEnchantmentLogic.lambda$initialize$1(GravecallerEnchantmentLogic.java:47) ~[affinity-0.1.13+1.21.1.jar:?]
at knot/io.wispforest.affinity.misc.callback.LivingEntityTickCallback.lambda$static$0(LivingEntityTickCallback.java:11) ~[affinity-0.1.13+1.21.1.jar:?]
at knot/net.minecraft.class_1309.handler$zhf000$affinity$onTickEnd(class_1309.java:9880) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1309.method_5773(class_1309.java:2595) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1657.method_5773(class_1657.java:312) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_742.method_5773(class_742.java:59) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_746.method_5773(class_746.java:221) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_638.mixinextras$bridge$method_5773$172(class_638.java) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_638.wrapOperation$khb002$porting_lib_entity$preEntityTick(class_638.java:11124) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_638.method_18646(class_638.java:278) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1937.mixinextras$bridge$accept$198(class_1937.java) ~[client-intermediary.jar:?]
at knot/com.bawnorton.neruina.handler.TickHandler.safelyTickEntities(TickHandler.java:113) ~[neruina-3.2.1+1.21.1-fabric.jar:?]
at knot/net.minecraft.class_1937.wrapOperation$ikk000$neruina$catchTickingEntities$notTheCauseOfTickLag(class_1937.java:9584) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_1937.method_18472(class_1937.java:498) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_638.method_32124(class_638.java:261) ~[client-intermediary.jar:?]
at knot/net.minecraft.class_5574.method_31791(class_5574.java:54) [client-intermediary.jar:?]
at knot/net.minecraft.class_638.method_18116(class_638.java:257) [client-intermediary.jar:?]
at knot/net.minecraft.class_310.method_1574(class_310.java:1956) [client-intermediary.jar:?]
at knot/net.minecraft.class_310.method_1523(class_310.java:1246) [client-intermediary.jar:?]
at knot/net.minecraft.class_310.method_1514(class_310.java:882) [client-intermediary.jar:?]
at knot/net.minecraft.client.main.Main.main(Main.java:256) [client-intermediary.jar:?]
at net.fabricmc.loader.impl.game.minecraft.MinecraftGameProvider.launch(MinecraftGameProvider.java:514) [fabric-loader-0.18.4.jar:?]
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:72) [fabric-loader-0.18.4.jar:?]
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23) [fabric-loader-0.18.4.jar:?]
at org.prismlauncher.launcher.impl.StandardLauncher.launch(StandardLauncher.java:105) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.listen(EntryPoint.java:129) [NewLaunch.jar:?]
at org.prismlauncher.EntryPoint.main(EntryPoint.java:70) [NewLaunch.jar:?]
2026-02-20-2.log.gz