Minecraft 1.12.2
Block Drops 1.4.0
How Fortunate 2.13

In a custom modpack with Block Drops and How Fortunate, the ore chunks that How Fortunate adds are incorrectly listed as dropping from lots of blocks they don't actually drop from. Testing in-game with Fortune III tools confirms that the ore chunks don't actually drop the way JEI says they do; the JEI entry is wrong.

The affected blocks are from various mods and Vanilla. As far as I can see, the incorrect drops are only the ore chunks from How Fortunate.

Example excerpts from Block Drops config file:

{
"name": "minecraft:wool",
"meta": 12,
"length": 1,
"name0": "fortunate:iron_chunk",
"meta0": 0,
"0chance0": 0.0,
"1chance0": 0.0,
"2chance0": 0.0,
"3chance0": 0.1,
"0pair0": "{\n "left": 0,\n "right": 0\n}",
"1pair0": "{\n "left": 0,\n "right": 0\n}",
"2pair0": "{\n "left": 0,\n "right": 0\n}",
"3pair0": "{\n "left": 0,\n "right": 1\n}"
},

{
"name": "minecraft:red_flower",
"meta": 2,
"length": 4,
"name0": "fortunate:iron_chunk",
"meta0": 0,
"0chance0": 0.1,
"1chance0": 0.0,
"2chance0": 0.3,
"3chance0": 0.0,
"0pair0": "{\n "left": 0,\n "right": 1\n}",
"1pair0": "{\n "left": 0,\n "right": 0\n}",
"2pair0": "{\n "left": 0,\n "right": 3\n}",
"3pair0": "{\n "left": 0,\n "right": 0\n}",
"name1": "fortunate:gold_chunk",
"meta1": 0,
"0chance1": 0.0,
"1chance1": 0.1,
"2chance1": 0.0,
"3chance1": 0.4,
"0pair1": "{\n "left": 0,\n "right": 0\n}",
"1pair1": "{\n "left": 0,\n "right": 1\n}",
"2pair1": "{\n "left": 0,\n "right": 0\n}",
"3pair1": "{\n "left": 0,\n "right": 3\n}",
"name2": "fortunate:copper_chunk",
"meta2": 0,
"0chance2": 0.3,
"1chance2": 0.5,
"2chance2": 0.2,
"3chance2": 0.0,
"0pair2": "{\n "left": 0,\n "right": 1\n}",
"1pair2": "{\n "left": 0,\n "right": 2\n}",
"2pair2": "{\n "left": 0,\n "right": 2\n}",
"3pair2": "{\n "left": 0,\n "right": 0\n}",
"name3": "fortunate:iridium_chunk",
"meta3": 0,
"0chance3": 0.0,
"1chance3": 0.0,
"2chance3": 0.2,
"3chance3": 0.0,
"0pair3": "{\n "left": 0,\n "right": 0\n}",
"1pair3": "{\n "left": 0,\n "right": 0\n}",
"2pair3": "{\n "left": 0,\n "right": 2\n}",
"3pair3": "{\n "left": 0,\n "right": 0\n}"
},

This issue on the How Fortunate Curseforge page: here.

I tried correcting the Block Drops file by hand. Ran into a couple of problems with that approach:

1. The file is way too long. I'm running about 200 mods. There are tons of entries that would need to be corrected.
2. After correcting a few and trying to launch the game, I got a null pointer exception (see below). It's entirely likely that I made a typo somewhere during my hand-corrections that caused the error.

Description: There was a severe problem during mod loading that has caused the game to fail

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Block Drops (blockdrops)
Caused by: java.lang.NullPointerException
at mrriegel.blockdrops.util.WrapperJson.deserialize(WrapperJson.java:64)
at mrriegel.blockdrops.util.WrapperJson.deserialize(WrapperJson.java:25)
at com.google.gson.internal.bind.TreeTypeAdapter.read(TreeTypeAdapter.java:69)
at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:41)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:82)
at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:61)
at com.google.gson.Gson.fromJson(Gson.java:887)
at com.google.gson.Gson.fromJson(Gson.java:852)
at mrriegel.blockdrops.BlockDrops.postInit(BlockDrops.java:110)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:637)
at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
at com.google.common.eventbus.EventBus.post(EventBus.java:217)
at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219)
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
at com.google.common.eventbus.EventBus.post(EventBus.java:217)
at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136)
at net.minecraftforge.fml.common.Loader.initializeMods(Loader.java:754)
at net.minecraftforge.fml.client.FMLClientHandler.finishMinecraftLoading(FMLClientHandler.java:336)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:535)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:378)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)