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Issue description:

According to the description of the cardboardModBlacklist setting, listing any mod ID will block the boxing of "any of their blocks", but it is unclear what a mod ID is in this context, and there are no given examples. Adding an invalid entry here will freeze the game when loading a world.

Steps to reproduce:

Version (make sure you are on the latest version before reporting):

Forge:
Mekanism:
Other relevant version:

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The freezing when loading a world appears to have been a configuration error on my part (I intitially did not add the quotation marks around refinedstorage), that is likely a general issue with Forge.
On that note, I think it's safe to consider this resolved once the clarity issue is fixed.

There is no example given modid is a very common concept in modded MC, for example minecraft, or mekanism. I will look into it freezing the world though when loading with invalid entries.

As I understand, it can be used as such: cardboardModBlacklist = ["refinedstorage"], but the lack of clear documentation here makes that a difficult thing to find out (in my searches through Google, this is a fairly common issue and it is difficult to find answers regarding the cardboard box in newer versions). I think it would be best to just list "mekanism" as the example in a commented out copy of the setting to avoid this confusion.

I will add an example, though I am unable to reproduce it crashing with an invalid modid.