If you middle click a crystal, it will give you a crystal with the unlocalized name "tile.cristallum:crystal.name". Breaking this block with your hand causes no issue, but when breaking the block with a mechanical miner from Extra Utilities 2, it causes this crash:
If you middle click a crystal, it will give you a crystal with the unlocalized name "tile.cristallum:crystal.name". Breaking this block with your hand causes no issue, but when breaking the block with a mechanical miner from Extra Utilities 2, it causes this crash:
https://hastebin.com/ovigeziziz.pas
Upon loading into the world again the same crash occurs, causing a crash loop that makes the world unplayable.