Forge: 2707
BASE: 3.9.0
Transport: 1.0.0
Crash Report: https://paste.dimdev.org/apacolireq.mccrash

Replicate:

• place a holder rail
• place a loader on top
• configure it with the wrench
• place a hopper on top of the loader
• put an item into the hopper

For now just put a chest between the hopper and the loader and it'll work, but this will be fixed in the next version