Any block that has been chiseled not rendering

It was working before I switched to Iris Shaders

For any bug reports please provide the following details as well,

• MC Version: 1.18.1
• C&B Version: 1.2.73
• Do You have Optifine: No (but I do have Iris)

it seems to show the outline correctly...

Iris is not supported it likely does not support the fabric rendering api needed for c and b blocks