game crashes upon clicking create new world after updating from 2025.3 to 2026.1

Started by Bommelnator on

Topic category: Troubleshooting, bugs, and solutions

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game crashes upon clicking create new world after updating from 2025.3 to 2026.1

i saw another post with the same problem but we probably dont have the same the same problem

heres the workspace cuz i dont have any idea whats causing this

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i tried to get it back to…
Fri, 05/29/2026 - 11:21

i tried to get it back to the old version but it doesnt let me

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i think i found the problem…
Fri, 05/29/2026 - 17:11

i think i found the problem but i dont know how to fix it

it somehow brought back structures that i deleted multiple versions ago and it just adds them back in every time i start it

it only shows them in the files but not in mcreator

 

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ok so i tried deleting the…
Fri, 05/29/2026 - 18:31

ok so i tried deleting the files manually again and now it wont start at all

 

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i fixed so that the mod is…
Sat, 05/30/2026 - 08:18

i fixed so that the mod is now playable by manually removing the structures from the exported jar file but my workspace is still unusable

java.lang…
Sun, 05/31/2026 - 10:50

java.lang.IllegalStateException: Unbound values in registry ResourceKey[minecraft:root / minecraft:worldgen/structure]: [sablebad_encounter_system:airborne_encounter_2, sablebad_encounter_system:beach_encounter_7, sablebad_encounter_system:deep_ocean_encounter_8, sablebad_encounter_system:end_encounter_4, sablebad_encounter_system:nether_encounter_3, sablebad_encounter_system:river_encounter_6, sablebad_encounter_system:sea_encounter_5]

It seems some structures are referencing sub-structures that no longer exist
 

jar file but my workspace is still unusable

what do you mean by that?

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i exported the workspace,…
Sun, 05/31/2026 - 11:27

i exported the workspace, opened the jar file with ark and removed the whole worldgen folder cuz i didnt wanna use that anyway in that version

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the mod is playable but i…
Sun, 05/31/2026 - 16:37

the mod is playable but i cant really work on it because for some reason removing the files in the mcreator workspace breaks it even more

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i fixed it by exporting the…
Tue, 06/02/2026 - 20:24

i fixed it by exporting the workspace to a zip file and then i removed all the broken elements from the structures, templates and elements folder