Compact Machines version: b249
Forge version: 2795
I am not using Optifine
Link to Crashlog: https://gist.github.com/Vyraal1/7052f0d51f97a9acffa1edd2a1700a33
Screenshot (if possible): here

Steps to reproduce:
According to the player they setup an item conduit to a tunnel and started to pull from it which prompted the crash.

https://gist.github.com/Vyraal1/7052f0d51f97a9acffa1edd2a1700a33

Trying link again since it was malformed

I will look into it soon.

Hey, just wondering any update on this?

I am unable to reproduce this and the crash report does not look like it would be related to item transfer via tunnels. This is really weird. Does this occur regularly or did it happen just once?

I've been having this issue with Mekanism's item transport pipes and logistical sorters.
I can get a crash log later tonight