I don't know if you will still support 1.18.1 or from now on, it will be only 1.18.2, but...

Forge Version:

39.1.0

Modlist:

ImmersiveEngineering-1.18.1-7.1.0-145.jar
rubidium-0.5.0.jar

Issues:

• I had the same rendering issues that are in #54

Except:

• Razor wire are ok
• Cables are visible

Pictures:

• These on the side are the extensions of the pole. The block ID is the same, but the horizontal offset is different.
  

• It should look like this
  

Issue is still occuring in 1.18.2,
IE version 1.18.2-8.0.1-147
Forge version 40.1.31
Using a minimal installation (Forge, Immersive Engineering, JEI, Rubidium)

Should be resolved on the latest versions.