Describe the bug
When using connected textures with Copycat Stairs and Copycat Vertical Stairs, connected textures will display improperly and not connect with other sides appropriately. When using blocks from Chipped for connected textures, certain faces will turn invisible.

To Reproduce
Steps to reproduce the behavior:

1. Place a Copycat Stair or Vertical Stair.
2. Place a slab or vertical slab connected to one of the indented sides (ex. stairs going up, normal slab in front)
3. Fill both with a connected texture block.
4. If using Create casings, the isolated step will try and connect with a non-existent surface inside itself, breaking the border of the texture. If using Chipped blocks, the side of the isolated step matching the covered side of the connected step will turn invisible.

Expected behavior
Expect textures to connect cleanly and logically.

Screenshots

Desktop (please complete the following information):

• Minecraft Version: 1.20.1
• Mod Loader: Forge 47.3.0
• Mod Version: copycats-3.0.0+mc.1.20.1-forge

Additional context
My guess as to what's happening is that the different faces of the Copycat Stairs aren't being separated properly - the top side of the bottom step and the top side of the top step seem as if they're being treated like one face. So when using Chipped, connecting one face turns it invisible (for some reason), and consequently the corresponding face on the other step also loses its texture. Same deal with Create casings - it seems like the corresponding side tries to connect to the block the other side is connected to.