Ok, so I have a custom book, and I was able to read it at one point, but after adding more of them, I can no longer read any of them. Here is my code:

ItemLoreBook

https://bitbucket.org/The_Fireplace/unlogic-ii/src/2392e4e390e8d73d5dad09d7312eef6708e79d30/src/main/java/the_fireplace/unlogicii/items/ItemLoreBook.java?at=master

LoreBooks(Where I define the itemstacks and set the nbt up

https://bitbucket.org/The_Fireplace/unlogic-ii/src/2392e4e390e8d73d5dad09d7312eef6708e79d30/src/main/java/the_fireplace/unlogicii/items/LoreBooks.java?at=master

 

Any help is appreciated.

No, I don't clone them before giving them to the player. Should I?

Ok, I made those changes, and it still doesn't work. The new code can be found at the same location.

What the heck man? Why did you add a 2nd @Mod? And you still create the ItemStacks in a static initializer.

2nd @Mod was a quick way to add them to preinitialization. Not really necessary, and now that I think about it more, I should probably fix that.

And oops, forgot that one part about the static initializer. One minute and I will test the new code, then post if there are any issues, and if there aren't, I will mark this as solved.

Ok, still having the same issue. Here is what changed in the last commit: https://bitbucket.org/The_Fireplace/unlogic-ii/commits/afb9d5777fb429c54b47804480b8348c43958170

Which part of "create them in preInit" did you still not understand?

 

Anyways, your issue is in EntityPlayerMP#displayGuiBook. Take a look at that method and the problem should be obvious.

If the problem was that it has to be a written book, why do you want me to create my itemstacks in the preinit? I have noticed that many mod authors create them there, but have never understood why, when it seems to work fine created normally.

And thanks for your patience and pointing me toward the problem.