Cold Sweat version 2.4-b04a
Logs: https://mclo.gs/TRYyGUy

Other logs: https://mclo.gs/Ihr8pHp

Steps to reproduce

1. Place hearth
2. Fuel Hearth
3. Redstone Power Hearth
4. Place MI Boiler

Just a heads up, this is still happening as of ColdSweat-2.4-b04b

Disconnect: https://mclo.gs/qJYouaj
Latest: https://mclo.gs/i6QKwG4
Debug: https://mclo.gs/vC8eqsi

I see. This was a logical error on my part. For some reason when you place Modern Industrialization components, the block is identified as "null" when it's placed. I didn't cover all of the cases where the block state is used; only some of them.

Actually, seems like it happens regardless of what MI blocks I place.

This is a pretty strange issue, but it's an easy fix. This shouldn't happen in the next version.

I assume this is related... but I'm also getting these errors that cause a disconnect quite regularly.

https://mclo.gs/Xkx9wHn

Just tested 2.4-b04c and can confirm it fixes this. Thanks!

When I saw you post on this issue my stomach dropped. I thought it was back again, lol

Ah, sorry for the scare. Just wanted to show my appreciation <3