Similar to #15, I am running a lot of mods, but I don't think that this is a compatibility issue. From the crash report, it looks like it's trying to invoke a multiplayer class even though it's a single player game. The furnace works perfectly for a long time and then it fails and makes the world unplayable. Every time it's happened to me it's been after I exited the game entirely and then restarted it while the fusion furnace was cooking something - but it doesn't happen consistently with that scenario (generally, once I place the furnace it's always cooking something). I have not been able to reproduce with a minimum set of mods, but it usually takes a long time in-game for it to occur (this time it was over 600 game days), so it's possible that I just haven't hit the exact conditions.
Environment:
Minecraft 1.19.2
Forge 43.2.0
Fusion 1.19.2-5.1.2.2
Simple Core Lib 1.19.2-5.1.0.2
This particular crash happened when the furnace was cooking Blue Drift Steel chunks from the Simple Cobalt mod (1.19.2-4.1.0.0), but it has happened before when cooking materials from the base Fusion mod (like Steel).
crash-2022-12-20_06.08.21-server.txt
Similar to #15, I am running a lot of mods, but I don't think that this is a compatibility issue. From the crash report, it looks like it's trying to invoke a multiplayer class even though it's a single player game. The furnace works perfectly for a long time and then it fails and makes the world unplayable. Every time it's happened to me it's been after I exited the game entirely and then restarted it while the fusion furnace was cooking something - but it doesn't happen consistently with that scenario (generally, once I place the furnace it's always cooking something). I have not been able to reproduce with a minimum set of mods, but it usually takes a long time in-game for it to occur (this time it was over 600 game days), so it's possible that I just haven't hit the exact conditions.
Environment:
Minecraft 1.19.2
Forge 43.2.0
Fusion 1.19.2-5.1.2.2
Simple Core Lib 1.19.2-5.1.0.2
This particular crash happened when the furnace was cooking Blue Drift Steel chunks from the Simple Cobalt mod (1.19.2-4.1.0.0), but it has happened before when cooking materials from the base Fusion mod (like Steel).
crash-2022-12-20_06.08.21-server.txt