Minecraft v1.12.2
Forge v14.23.5.2838
Charset Lib v0.5.6.3
Charset Immersion v0.5.6.0
Twilight Forest v3.9.984

Ingots from Twilight Forest, when placed, display incorrectly. Twilight Forest seems to use special renders for its blocks. The Knightmetal block also uses a 3D model.

For the ingots on the left, from top to bottom, is the Knightmetal Ingot, Ironwood Ingot, & the Fiery Ingot. On the right, is what the blocks actually look like.