The mouth texture of the underground steel pipe is misaligned and sits roughly half a block away from the rest of the pipe.
https://paste.gloriouseggroll.tv/?20a602acfc8851c1#HH345GXGoX7mFMEEk2BYDBxVMxhgoEhvMypLoNAWybh7

Another issue is when using smart drag, the underground pipes are being put one block too far away from the intended location, breaking the pipe network connections.

Yes, this is a known issue. For now I wanted to just get the mod working with 2.0.
I'm still working through compatibility for my other mods as well. Later, when time permits, I plan to come back to this one and rebuild it from the ground up for 2.0.