Checked for existing issues

• I have checked for existing issues, and have found none.

Tested latest version

• I have checked that this occurs on the latest version.

GregTech CEu Version

7.1.0-SNAPSHOT+03a3296

Minecraft Version

1.21.1 NeoForge

Recipe Viewer Installed

EMI

Environment

Singleplayer

Cross-Mod Interaction

Unsure

Other Installed Mods

• AppleSkin [3.0.7+mc1.21] (appleskin-neoforge-mc1.21-3.0.7.jar)
• Applied Energistics 2 [19.2.13] (appliedenergistics2-19.2.13.jar)
• Architectury [13.0.8] (architectury-13.0.8-neoforge.jar)
• Bad Packets [0.8.2] (badpackets-neo-0.8.2.jar)
• Balm [21.0.48] (balm-neoforge-1.21.1-21.0.48.jar)
• CodeChicken Lib [4.6.1.524] (CodeChickenLib-1.21.1-4.6.1.524.jar)
• Configuration [3.1.1] (configuration-neoforge-1.21.1-3.1.1.jar)
• EMI [1.1.22+1.21.1+neoforge] (emi-1.1.22+1.21.1+neoforge.jar)
• EMI Loot [0.7.6+1.21+neoforge] (emi_loot-0.7.6+1.21+neoforge.jar)
• EMI Ores [1.2+1.21.1+neoforge] (emi_ores-1.2+1.21.1+neoforge.jar)
• EnderStorage [2.13.0.191] (EnderStorage-1.21.1-2.13.0.191.jar)
• FTB Chunks [2101.1.9] (ftb-chunks-neoforge-2101.1.9.jar)
• FTB Library [2101.1.18] (ftb-library-neoforge-2101.1.18.jar)
• FTB Teams [2101.1.2] (ftb-teams-neoforge-2101.1.2.jar)
• Fzzy Config [0.7.1+1.21+neoforge] (fzzy_config-0.7.1+1.21+neoforge.jar)
• GregTech [7.1.0-SNAPSHOT+03a3296] (gtceu-1.21.1-7.1.0-SNAPSHOT+20250729-082727-03a3296.jar)
• GuideME [21.1.14] (guideme-21.1.14.jar)
• Inventory Tweaks Refoxed [1.21.1-1.2.0] (invtweaks-1.21.1-1.2.0.jar)
• Jade [15.10.2+neoforge] (Jade-1.21.1-NeoForge-15.10.2.jar)
• Journeymap [1.21.1-6.0.0-beta.52] (journeymap-neoforge-1.21.1-6.0.0-beta.52.jar)
• Kotlin for Forge [4qCjWixP] (kotlinforforge-5.9.0-all.jar)
• LowDragLib2 [2.0.1] (ldlib2-neoforge-1.21.1-2.0.1-all.jar.disabled)
• Sodium [0.6.13+mc1.21.1] (sodium-neoforge-0.6.13+mc1.21.1.jar.disabled)
• Sophisticated Backpacks [3.24.18] (sophisticatedbackpacks-1.21.1-3.24.18.1288.jar)
• Sophisticated Core [1.3.58] (sophisticatedcore-1.21.1-1.3.58.1057.jar)
• Waystones [21.1.20] (waystones-neoforge-1.21.1-21.1.20.jar)

Expected Behavior

The game shouldn't crash.

Actual Behavior

The game crashed.

Steps to Reproduce

I can't repro it, it only happened once.

• Have a bunch of HP solar boilers
• Sleep in bed
• Game crashed

Additional Information

Logs: https://mclo.gs/lx5X75f

Not only solar boiler, but also solid boiler.
crash report

Not only boiler, but also primitive blast.
crash-2025-08-02_10.21.54-client.txt

Still present in latest 25a88a3 snapshot. Seems to affect the steam oven multi also. java.lang.IllegalArgumentException: Cannot get property EnumProperty{name=steam_vent, clazz=class com.gregtechceu.gtceu.api.multiblock.util.RelativeDirection, values=[UP, DOWN, LEFT, RIGHT, FRONT, BACK]} as it does not exist in gtceu:steam_oven