Hi,

I run
MC : 1.12.1
Forge : 14.22.0.2460
MM : 1.4
ThermalDynamics-1.12-2.3.4.11-universal
RedstoneFlux-1.12-2.0.1.2-universal
CoFHCore-1.12-4.3.4.12-universal
ImmersiveEngineering-0.12-71

Well We test a bunch of things this is an issue with multiple weidy things.

1/ when we power of an MM multipblock with a cryo stabilied (from Thermal dynamics) the game seems freeing without crash short flv https://puu.sh/xiuUW/c733a59044.flv & here general logs https://puu.sh/xiuWF/8a1108d3f8.zip
2/ when a output is full the machine continue consume item in input (this is maybe an inmprovement) or I'm very noobie this my config folder https://puu.sh/xivCK/2e9c6bf976.zip
3/ I can't extract FE or RF again this is folder with machines https://puu.sh/xivCK/2e9c6bf976.zip

thx for reading, best regards

@ARatfat do these still happen with later versions of forge and the other mods?

Yeah & never was close i close it nos