Hello, I am using the latest version of carpenter's blocks from CurseForge, which would be the one for MC version 1.12.2 which overall, is working just fine. The only problem is that the formula given on the wiki does not work for crafting carpenter's stairs. I also can't craft the slope block, which isn't as much of an issue because I am able to spawn it in creative mode. However, I can't spawn stairs in creative mode.

Please help...

Sorry for delay. The 1.12.2 version is a proof of concept only. It is missing most blocks and is currently fairly unstable.