Can you add a micro blocks support please? In 1.7.10 it worked but not in 1.12.2 more.

Which microblocks mod?

Forge Micro blocks from Chickencode

Agree! I've been trying to manually add chisel blocks to be compatible with no luck yet. Desperately want to be able to make all the different shapes/items that microblocks allows with chisel items.

This microblocks config can be used to add support for Chisel blocks. On multiplayer, it needs to be applied both server- and client-side (for all players).

Forge Microblocks: Chicken Bones Edition is the most popular mod that doesn't have working compatibility. Little Tiles and Chisels and Bits should be compatible with any solid block out of the box.