Pretty much as it says on the tin... the Shard of Laputa alchemy array (Redstone + Lapis Block) can pull bedrock into the sky if activated at a low enough Y-level.
Pretty sure this is an exploit, right?

Affected Versions:

• BloodMagic: 1.12.2-2.2.12-97
• Minecraft: 1.12.2
• Forge: 2705

Confirmed fixed in 1.12.2-2.3.0-98

Oh I forgot to close all these, oops

Just thought I'd help out ;)