BuildCraft version: 7.99.17
Forge version: 14.23.4.2765
Link to crash report or log:
MultiMC Log: https://paste.ee/p/gHL3R
Crash Report: https://paste.ee/p/gHL3R
Singleplayer or multiplayer: Singleplayer
Steps to reproduce: Download Sevtech 3.0.8. Add Optifine and SEUS. Update Better with Mods and Better with Addons. Add Additional Pipes 6.0.0.8.
Additional information: I originally posted this on the Additional Pipes Git because that is the only time this crash occurs; when I add that mod. Here is the dialogue: tcooc/AdditionalPipesBC#183. I then made a ticket with Better with Addons and this is the ongoing conversation: DaedalusGame/BetterWithAddons#149. They mentioned Buildcraft Facades.
I haven't updated Buildcraft yet and tried that. That will be my next step.

Thanks for the help and ongoing support of this legendary mod! :)